SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                ----------------

                                  SCHEDULE 13G
                                ----------------


             INFORMATION STATEMENT PURSUANT TO RULES 13d-1 AND 13d-2
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                               LSI Industries Inc.
                                (NAME OF ISSUER)

                           Common Stock, no par value
                         (TITLE OF CLASS OF SECURITIES)

                                    50216C108
                                 (CUSIP NUMBER)

                                December 31, 2007
             (Date of Event which requires Filing of this Statement)

        Check the appropriate box to designate the rule pursuant to which
                             this Schedule is filed:

                                [ ] Rule 13d-1(b)
                                [x] Rule 13d-1(c)
                                [ ] Rule 13d-1(d)






                              (Page 1 of 18 PAGES)
------------------

* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

     The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).





CUSIP No. 50216C108                      13G                  PAGE 2 of 18 PAGES

--------------------------------------------------------------------------------
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSON
          Ardsley Partners Fund II, L.P.
--------------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                    (a)  [x]
                                                                    (b)  [ ]
--------------------------------------------------------------------------------
     (3)  SEC USE ONLY

--------------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
               Delaware
--------------------------------------------------------------------------------

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES
               -----------------------------------------------------------------
BENEFICIALLY   (6)  SHARED VOTING POWER
                    257,000
OWNED BY
               -----------------------------------------------------------------
EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING
               -----------------------------------------------------------------
PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    257,000
--------------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          257,000
--------------------------------------------------------------------------------
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                          [ ]
--------------------------------------------------------------------------------
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          1.19%
--------------------------------------------------------------------------------
    (12)  TYPE OF REPORTING PERSON **
             PN
--------------------------------------------------------------------------------
             ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 50216C108                      13G                 PAGE 3 of 18 PAGES

-------------------------------------------------------------------------------
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSON
          Ardsley Partners Institutional Fund, L.P.
-------------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                    (a)  [x]
                                                                    (b)  [ ]
-------------------------------------------------------------------------------
     (3)  SEC USE ONLY

-------------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          Delaware
-------------------------------------------------------------------------------

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES
               ----------------------------------------------------------------
BENEFICIALLY   (6)  SHARED VOTING POWER
                    160,500
OWNED BY
               ----------------------------------------------------------------
EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING
               ----------------------------------------------------------------
PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    160,500
-------------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          160,500
-------------------------------------------------------------------------------
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                          [ ]
-------------------------------------------------------------------------------
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0.75%
-------------------------------------------------------------------------------
    (12) TYPE OF REPORTING PERSON **
               PN
-------------------------------------------------------------------------------
             ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 50216C108                      13G                 PAGE 4 of 18 PAGES

-------------------------------------------------------------------------------
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSON
          Ardsley Partners Renewable Energy Fund, L.P.
-------------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                    (a)  [x]
                                                                    (b)  [ ]
-------------------------------------------------------------------------------
     (3) SEC USE ONLY

-------------------------------------------------------------------------------
     (4) CITIZENSHIP OR PLACE OF ORGANIZATION
         Delaware
-------------------------------------------------------------------------------

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES
               ----------------------------------------------------------------
BENEFICIALLY   (6)  SHARED VOTING POWER
                    165,500
OWNED BY
               ----------------------------------------------------------------
EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING
               ----------------------------------------------------------------
PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    165,500
-------------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          165,500
-------------------------------------------------------------------------------
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                          [ ]
-------------------------------------------------------------------------------
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0.77%
-------------------------------------------------------------------------------
    (12)  TYPE OF REPORTING PERSON **
               PN
-------------------------------------------------------------------------------
             ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 50216C108                      13G                 PAGE 5 of 18 PAGES

-------------------------------------------------------------------------------
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSON
          Ardsley Offshore Fund Ltd.
-------------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                    (a)  [x]
                                                                    (b)  [ ]
-------------------------------------------------------------------------------
     (3)  SEC USE ONLY

-------------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          British Virgin Islands
-------------------------------------------------------------------------------

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES
               ----------------------------------------------------------------
BENEFICIALLY   (6)  SHARED VOTING POWER
                    175,500
OWNED BY
               ----------------------------------------------------------------
EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING
               ----------------------------------------------------------------
PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    175,500
-------------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          175,500
-------------------------------------------------------------------------------
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                          [ ]
-------------------------------------------------------------------------------
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0.81%
-------------------------------------------------------------------------------
    (12)  TYPE OF REPORTING PERSON **
               CO
-------------------------------------------------------------------------------
             ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 50216C108                      13G                 PAGE 6 of 18 PAGES

-------------------------------------------------------------------------------
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSON
          Ardsley Renewable Energy Offshore Fund, Ltd.
-------------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                    (a)  [x]
                                                                    (b)  [ ]
-------------------------------------------------------------------------------
     (3)  SEC USE ONLY

-------------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          British Virgin Islands
-------------------------------------------------------------------------------

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES
               ----------------------------------------------------------------
BENEFICIALLY   (6)  SHARED VOTING POWER
                    277,000
OWNED BY
               ----------------------------------------------------------------
EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING
               ----------------------------------------------------------------
PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    277,000
-------------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          277,000
-------------------------------------------------------------------------------
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                          [ ]
-------------------------------------------------------------------------------
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          1.29%
-------------------------------------------------------------------------------
    (12) TYPE OF REPORTING PERSON **
               CO
-------------------------------------------------------------------------------
             ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 50216C108                      13G                 PAGE 7 of 18 PAGES

-------------------------------------------------------------------------------
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSON
          Ardsley Advisory Partners
-------------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                    (a)  [x]
                                                                    (b)  [ ]
-------------------------------------------------------------------------------
     (3)  SEC USE ONLY

-------------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          Connecticut
-------------------------------------------------------------------------------

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES
               ----------------------------------------------------------------
BENEFICIALLY   (6)  SHARED VOTING POWER
                    1,085,000
OWNED BY
               ----------------------------------------------------------------
EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING
               ----------------------------------------------------------------
PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    1,085,000
-------------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          1,085,000
-------------------------------------------------------------------------------
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                        [ ]
-------------------------------------------------------------------------------
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          5.04%
-------------------------------------------------------------------------------
    (12)  TYPE OF REPORTING PERSON **
               PN; IA
-------------------------------------------------------------------------------
             ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 50216C108                      13G                 PAGE 8 of 18 PAGES

-------------------------------------------------------------------------------
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSON
          Ardsley Partners I
-------------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                    (a)  [x]
                                                                    (b)  [ ]
-------------------------------------------------------------------------------
     (3)  SEC USE ONLY

-------------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          Connecticut
-------------------------------------------------------------------------------

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES
               ----------------------------------------------------------------
BENEFICIALLY   (6)  SHARED VOTING POWER
                    583,000
OWNED BY
               ----------------------------------------------------------------
EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING
               ----------------------------------------------------------------
PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    583,000
-------------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          583,000
-------------------------------------------------------------------------------
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                          [ ]
-------------------------------------------------------------------------------
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          2.71%
-------------------------------------------------------------------------------
    (12)  TYPE OF REPORTING PERSON **
               PN
-------------------------------------------------------------------------------
             ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 50216C108                       13G                PAGE 9 of 18 PAGES

-------------------------------------------------------------------------------
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSON
          Philip J. Hempleman
-------------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                    (a)  [x]
                                                                    (b)  [ ]
-------------------------------------------------------------------------------
     (3)  SEC USE ONLY

-------------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          United States
-------------------------------------------------------------------------------

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES
               ----------------------------------------------------------------
BENEFICIALLY   (6)  SHARED VOTING POWER
                    1,085,000
OWNED BY
               ----------------------------------------------------------------
EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING
               ----------------------------------------------------------------
PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    1,085,000
-------------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          1,085,000
-------------------------------------------------------------------------------
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                          [ ]
-------------------------------------------------------------------------------
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          5.04%
-------------------------------------------------------------------------------
    (12)  TYPE OF REPORTING PERSON **
               IN
-------------------------------------------------------------------------------
             ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 50216C108                       13G               PAGE 10 of 18 PAGES

ITEM 1(a).  NAME OF ISSUER:

            The name of the issuer is LSI Industries Inc. (the "Company").

ITEM 1(b).  ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
            10000 Alliance Road, Cincinnati, Ohio  45242

ITEM 2(a).  NAME OF PERSON FILING:

      This statement is filed by:

      (i)   Ardsley Partners Fund II, L.P., a Delaware limited partnership ("AP
            II"), with respect to the shares of Common Stock, no par value
            ("Common Stock") directly owned by it;
      (ii)  Ardsley Partners Institutional Fund, L.P., a Delaware limited
            partnership ("Ardsley Institutional"), with respect to the shares of
            Common Stock directly owned by it;
      (iii) Ardsley Partners Renewable Energy Fund, L.P., a Delaware limited
            partnership ("Ardsley Energy"), with respect to the shares of Common
            Stock directly owned by it;
      (iv)  Ardsley Offshore Fund Ltd., a British Virgin Islands corporation
            ("Ardsley Offshore"), with respect to the shares of Common Stock
            directly owned by it;
      (v)   Ardsley Renewable Energy Offshore Fund, Ltd., a British Virgin
            Islands corporation ("Ardsley Energy Offshore"), with respect to the
            shares of Common Stock directly owned by it;
      (vi)  Ardsley Advisory Partners, a New York general partnership
            ("Ardsley") which serves as Investment Manager of Ardsley Offshore,
            Ardsley Energy Offshore and the Investment Adviser of AP II, Ardsley
            Institutional, Ardsley Energy and certain managed accounts, with
            respect to the shares of Common Stock directly owned by Ardsley
            Offshore, Ardsley Energy Offshore, AP II, Ardsley Institutional,
            Ardsley Energy and the managed accounts;
      (vii) Ardsley Partners I, a New York general partnership ("Ardsley
            Partners") which serves as General Partner of AP II, Ardsley
            Institutional and Ardsley Energy; and
      (viii)Philip J. Hempleman ("Mr. Hempleman"), the Managing Partner of
            Ardsley and Ardsley Partners, with respect to the shares of Common
            Stock owned by AP II, Ardsley Institutional, Ardsley Energy, Ardsley
            Offshore, Ardsley Energy Offshore and the managed accounts.

            The foregoing persons are hereinafter sometimes collectively
referred to as the "Reporting Persons." Any disclosures herein with respect to
persons other than the Reporting Persons are made on information and belief
after making inquiry to the appropriate party.

ITEM 2(b).  ADDRESS OF PRINCIPAL OFFICE OR, IF NONE, RESIDENCE:

      The address of the business office of each of the Reporting Persons, with
the exception of Ardsley Offshore and Ardsley Energy Offshore, is 262 Harbor
Drive, Stamford, Connecticut 06902.

      The address of the registered office of Ardsley Offshore and Ardsley
Energy Offshore is Romasco Place, Wickhams Cay 1, Roadtown Tortola, British
Virgin Islands.





CUSIP No. 50216C108                       13G               PAGE 11 of 18 PAGES

ITEM 2(c).  CITIZENSHIP:

      AP II, Ardsley  Institutional  and Ardsley  Energy are Delaware  limited
partnerships.  Ardsley  Offshore  and  Ardsley  Energy  Offshore  are  British
Virgin  Islands  corporations.  Ardsley  and  Ardsley  Partners  are New  York
general partnerships.  Mr. Hempleman is a United States Citizen.

ITEM 2(d).  TITLE OF CLASS OF SECURITIES: Class A Common Stock, no par value
per share

ITEM 2(e).  CUSIP NUMBER:  50216C108

ITEM 3.   IF THIS STATEMENT IS FILED PURSUANT TO RULES 13d-1(b), OR 13d-2(b),
CHECK WHETHER THE PERSON FILING IS A:

          (a) [ ] Broker or dealer registered under Section 15 of the Act

          (b) [ ] Bank as defined in Section 3(a)(6) of the Act


          (c) [ ] Insurance Company as defined in Section 3(a)(19) of the
                  Act

          (d) [ ] Investment Company registered under Section 8 of the
                  Investment Company Act

          (e) [ ] Investment Adviser registered under Section 203 of the
                  Investment Advisers Act of 1940

          (f) [ ] Employee Benefit Plan, Pension Fund which is subject to
                  the provisions of the Employee Retirement Income Security
                  Act of 1974 or Endowment Fund; see Rule 13d- 1(b)(1)(ii)(F)

          (g) [ ] Parent Holding Company, in accordance with Rule 13d-
                  1(b)(ii)(G); see item 7

          (h) ( ) Group, in accordance with Rule 13d-1(b)(1)(ii)(H)

If this statement is filed pursuant to Rule 13d-1(c), check the box. [X]





CUSIP No. 50216C108                      13G                PAGE 12 of 18 PAGES

ITEM 4.   OWNERSHIP.

      A.    Ardsley Partners Fund II, L.P.
            (a)   Amount beneficially owned:  257,000
            (b)   Percent of class: 1.19%. (The percentages used herein and in
                  the rest of Item 4 are calculated based upon the 21,535,188
                  shares of Common Stock issued and outstanding as per the
                  Company's Form 10-Q for the period ended September 30, 2007,
                  as filed with the Securities and Exchange Commission on
                  November 14, 2007.)
            (c)   (i)   Sole Power to vote or direct the vote: -0-
                  (ii)  Shared power to vote or direct the vote: 257,000
                  (iii) Sole power to dispose or direct the disposition: -0-
                  (iv)  Shared power to dispose or direct the disposition:
                        257,000

      B.    Ardsley Partners Institutional Fund, L.P.
            (a)   Amount beneficially owned: 160,500
            (b)   Percent of class: 0.75%
            (c)   (i)   Sole Power to vote or direct the vote: -0-
                  (ii)  Shared power to vote or direct the vote: 160,500
                  (iii) Sole power to dispose or direct the disposition: -0-
                  (iv)  Shared power to dispose or direct the disposition:
                        160,500

      C.    Ardsley Partners Renewable Energy Fund, L.P.
            (a)   Amount beneficially owned: 165,500
            (b)   Percent of class: 0.77%
            (c)   (i)   Sole Power to vote or direct the vote: -0-
                  (ii)  Shared power to vote or direct the vote: 165,500
                  (iii) Sole power to dispose or direct the disposition: -0-
                  (iv)  Shared power to dispose or direct the disposition:
                        165,500

      D.    Ardsley Offshore Fund Ltd.
            (a) Amount beneficially owned: 175,500
            (b) Percent of class: 0.81%
            (c)   (i)   Sole Power to vote or direct the vote: -0-
                  (ii)  Shared power to vote or direct the vote: 175,500
                  (iii) Sole power to dispose or direct the disposition: -0-
                  (iv)  Shared power to dispose or direct the disposition:
                        175,500

      E.    Ardsley Renewable Energy Offshore Fund, Ltd.
            (a) Amount beneficially owned: 277,000
            (b) Percent of class: 1.29%
            (c)   (i)   Sole Power to vote or direct the vote: -0-
                  (ii)  Shared power to vote or direct the vote: 277,000
                  (iii) Sole power to dispose or direct the disposition: -0-
                  (iv)  Shared power to dispose or direct the disposition:
                        277,000

      F.    Ardsley Advisory Partners
            (a) Amount beneficially owned: 1,085,000
            (b) Percent of class: 5.04%
            (c)   (i)   Sole Power to vote or direct the vote: -0-
                  (ii)  Shared power to vote or direct the vote: 1,085,000
                  (iii) Sole power to dispose or direct the disposition: -0-
                  (iv)  Shared power to dispose or direct the disposition:
                        1,085,000





CUSIP No. 50216C108                      13G                PAGE 13 of 18 PAGES

      G.    Ardsley Partners I
            (a) Amount beneficially owned: 583,000
            (b) Percent of class: 2.71%
            (c)   (i)   Sole Power to vote or direct the vote: -0-
                  (ii)  Shared power to vote or direct the vote: 583,000
                  (iii) Sole power to dispose or direct the disposition: -0-
                  (iv)  Shared power to dispose or direct the disposition:
                        583,000

      H.    Philip J. Hempleman
            (a) Amount beneficially owned: 1,085,000
            (b) Percent of class: 5.04%
            (c)   (i)   Sole Power to vote or direct the vote: -0-
                  (ii)  Shared power to vote or direct the vote: 1,085,000
                  (iii) Sole power to dispose or direct the disposition: -0-
                  (iv)  Shared power to dispose or direct the disposition:
                        1,085,000

ITEM 5.   OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
          Not applicable.

ITEM 6.   OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

      Ardsley, the Investment Manager of Ardsley Offshore and Ardsley Energy
Offshore and the Investment Adviser of certain managed accounts, has the power
to vote and direct the disposition of the proceeds from the sale of the shares
of Common Stock owned by Ardsley Offshore, Ardsley Energy Offshore and the
managed accounts, and accordingly may be deemed the direct "beneficial owner" of
such shares of Common Stock.

      Ardsley, the Investment Adviser of AP II, Ardsley Institutional and
Ardsley Energy, shares the power to vote and direct the disposition of the
proceeds from the sale of the shares of Common Stock owned by AP II, Ardsley
Institutional and Ardsley Energy, and, accordingly, may be deemed the direct
"beneficial owner" of such shares of Common Stock.

      Ardsley Partners, the General Partner of AP II, Ardsley Institutional and
Ardsley Energy, shares the power to vote and direct the disposition of the
shares of Common Stock owned by AP II, Ardsley Institutional and Ardsley Energy,
and, accordingly, may be deemed the direct "beneficial owner" of such shares of
Common Stock.

      Mr. Hempleman is the Managing Partner of Ardsley and Ardsley Partners and
in that capacity directs their operations and therefore may be deemed to be the
indirect "beneficial owner" of the shares of Common Stock owned by Ardsley
Offshore, AP II, Ardsley Institutional, Ardsley Energy, Ardsley Energy Offshore
and the managed accounts. Mr. Hempleman disclaims beneficial ownership of all of
the shares of Common Stock reported in this 13G

ITEM 7.   IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
          THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY. Not
          applicable.

ITEM 8.   IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
          Not applicable.

ITEM 9.   NOTICE OF DISSOLUTION OF GROUP.
          Not applicable.





CUSIP No. 50216C108                      13G               PAGE 14 of 18 PAGES

ITEM 10.  CERTIFICATION.

     Each of the Reporting Persons hereby makes the following certification:

          By signing below I certify, to the best of my knowledge and belief,
the securities referred to above were acquired in the ordinary course of
business, were not acquired for the purpose of and do not have the effect of
changing or influencing the control of the issuer of such securities and were
not acquired in connection with or as a participant in any transaction having
such purposes or effect.





CUSIP No. 50216C108                      13G               PAGE 15 of 18 PAGES

                                    SIGNATURE

          After reasonable inquiry and to the best of their knowledge and
belief, the undersigned certify that the information set forth in this statement
is true, complete and correct.


DATED:  as of February 14, 2008


                              ARDSLEY PARTNERS FUND II, L.P.
                              BY:  ARDSLEY PARTNERS I,
                                   GENERAL PARTNER


                               BY:/s/ Steve Napoli
                                  ----------------
                                  Steve Napoli
                                  General Partner



                              ARDSLEY PARTNERS INSTITUTIONAL FUND, L.P.
                              BY:  ARDSLEY PARTNERS I,
                                   GENERAL PARTNER


                               BY:/s/ Steve Napoli
                                  ----------------
                                  Steve Napoli
                                  General Partner


                              ARDSLEY PARTNERS RENEWABLE ENERGY FUND, L.P.
                              BY:  ARDSLEY PARTNERS I,
                                   GENERAL PARTNER


                               BY:/s/ Steve Napoli
                                  ---------------
                                  Steve Napoli
                                  General Partner

                              ARDSLEY OFFSHORE FUND LTD.


                                BY:/s/ Neil Glass
                                   --------------
                                   Neil Glass
                                   Director


                              ARDSLEY RENEWABLE ENERGY OFFSHORE FUND LTD.


                               BY:/s/ Steve Napoli
                                  ----------------
                                  Steve Napoli
                                  Director





CUSIP No. 50216C108                      13G                      PAGE 16 of
18 PAGES

                              ARDSLEY ADVISORY PARTNERS
                              By: ARDSLEY PARTNERS I
                                  GENERAL PARTNER


                               BY:/s/ Steve Napoli
                                  ----------------
                                  Steve Napoli
                                  General Partner


                               ARDSLEY PARTNERS I

                               BY:/s/ Steve Napoli
                                  ----------------
                                  Steve Napoli
                                  General Partner



                              PHILIP J. HEMPLEMAN, INDIVIDUALLY


                              BY:/s/ Steve Napoli*
                                 -----------------
                                    Steve Napoli
                               As attorney in fact for
                               Philip J. Hempleman


*  Evidence of Power of Attorney was filed with the Schedule 13G filed on
   February 15, 2006 (Acc-no: 0000902664-06-000895) and is incorporated by
   reference into this filing.





CUSIP No. 50216C108                  13G                   PAGE 17 of 18 PAGES

                                    EXHIBIT 1
             JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)(1)

            The undersigned acknowledge and agree that the foregoing statement
on Schedule 13G is filed on behalf of each of the undersigned and that all
subsequent amendments to this statement shall be filed on behalf of each of the
undersigned without the necessity of filing additional joint filing statements.
The undersigned acknowledge that each shall be responsible for the timely filing
of such amendments, and for the completeness and accuracy of the information
concerning him, her or it contained herein, but shall not be responsible for the
completeness and accuracy of the information concerning the other entities or
persons, except to the extent that he, she or it knows or has reason to believe
that such information is inaccurate.

Dated as of February 14, 2008



                              ARDSLEY PARTNERS FUND II, L.P.
                              BY:  ARDSLEY PARTNERS I,
                                   GENERAL PARTNER


                               BY:/s/ Steve Napoli
                                  -----------------
                                  Steve Napoli
                                  General Partner


                              ARDSLEY PARTNERS INSTITUTIONAL FUND, L.P.
                              BY:  ARDSLEY PARTNERS I,
                                   GENERAL PARTNER


                               BY:/s/ Steve Napoli
                                  ----------------
                                  Steve Napoli
                                  General Partner

                              ARDSLEY PARTNERS RENEWABLE ENERGY FUND, L.P.
                              BY:  ARDSLEY PARTNERS I,
                                   GENERAL PARTNER


                               BY:/s/ Steve Napoli
                                  ----------------
                                  Steve Napoli
                                  General Partner


                              ARDSLEY OFFSHORE FUND LTD.


                                BY:/s/ Neil Glass
                                   ---------------
                                   Neil Glass
                                   Director





CUSIP No. 50216C108                      13G                PAGE 18 of 18 PAGES

                              ARDSLEY RENEWABLE ENERGY OFFSHORE FUND LTD.


                               BY:/s/ Steve Napoli
                                  -----------------
                                   Steve Napoli
                                   Director


                              ARDSLEY ADVISORY PARTNERS

                             By: ARDSLEY PARTNERS I
                                 GENERAL PARTNER

                               BY:/s/ Steve Napoli
                                  ----------------
                                  Steve Napoli
                                  General Partner


                               ARDSLEY PARTNERS I

                               BY:/s/ Steve Napoli
                                  -----------------
                                  Steve Napoli
                                  General Partner


                              PHILIP J. HEMPLEMAN, INDIVIDUALLY


                              BY:/s/ Steve Napoli*
                                 ------------------
                                  Steve Napoli
                                  Attorney-in-fact
                                  for Philip J. Hempleman





*  Evidence of Power of Attorney was filed with the Schedule 13G filed on
   February 15, 2006 (Acc-no: 0000902664-06-000895) and is incorporated by
   reference into this filing.