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United States securities and exchange commission logo





                           January 4, 2022

       Tod Nestor
       Chief Operating Officer and Chief Financial Officer
       Energy Focus, Inc.
       32000 Aurora Road, Suite B
       Solon, Ohio 44139

                                                        Re: Energy Focus, Inc.
                                                            Registration
Statement on Form S-3
                                                            Filed December 28,
2021
                                                            File No. 333-261906

       Dear Mr. Nestor:

              This is to advise you that we have not reviewed and will not
review your registration
       statement.

               Please refer to Rules 460 and 461 regarding requests for
acceleration. We remind you
       that the company and its management are responsible for the accuracy and
adequacy of their
       disclosures, notwithstanding any review, comments, action or absence of
action by the staff.

                                                        Please contact Patrick
Fullem at (202) 551-8337 with any questions.




                           Sincerely,


                           Division of Corporation Finance

                           Office of Manufacturing
       cc:                                              Michael J. Solecki
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