Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
DIKER MANAGEMENT LLC
  2. Issuer Name and Ticker or Trading Symbol
ENERGY FOCUS, INC/DE [EFOI]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
former 10% owner
(Last)
(First)
(Middle)
745 FIFTH AVENUE, SUITE 1409
3. Date of Earliest Transaction (Month/Day/Year)
02/22/2010
(Street)

NEW YORK, NY 10151
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common stock, $0.00001 par value (the "Common Stock") 02/22/2010(1)(2)   S   625,000 D $ 0.95 1,907,108 I See footnote (1) (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
DIKER MANAGEMENT LLC
745 FIFTH AVENUE
SUITE 1409
NEW YORK, NY 10151
      former 10% owner

Signatures

 /s/ C. Diker   02/24/2010
**Signature of Reporting Person Date

 /s/ M. Diker   02/24/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The shares of Common Stock to which this line refers are held indirectly by Diker Management, LLC (the "Reporting Person"), in its capacity as the registered investment adviser of certain managed accounts and funds. The Reporting Person is a registered investment adviser and as such disclaims all beneficial ownership of these shares and in any case disclaims beneficial ownership of these shares except to the extent of the Reporting Person's pecuniary interest in the shares of Common Stock. The Reporting Person is a registered investment adviser but has elected to file this Form 4 nevertheless.
(2) (continued from footnote 1) The reported sale was made pursuant to the Letter Agreement and the December Letter Agreement disclosed in the Schedule 13D filed by the Reporting Person on November 12, 2009 and in Amendment No. 1 to the Schedule 13D filed by the Reporting Person on December 23, 2009 and pursuant to an agreement with Ouercus Trust as disclosed in the Schedule 13G filed by the Reporting Persons on January 5, 2010.

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