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Schedule II - Schedule of Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Schedule of Valuation and Qualifying Accounts
SCHEDULE II
ENERGY FOCUS, INC.
SCHEDULE OF VALUATION AND QUALIFYING ACCOUNTS
(amounts in thousands) 
DescriptionBeginning
Balance
Charges to
Revenue/
Expense
DeductionsEnding
Balance
Year ended December 31, 2023
Allowance for doubtful accounts and returns$26 12 $20 
Inventory reserves2,527 4043782,553 
Valuation allowance for deferred tax assets20,764 2,209 346 22,627 
Year ended December 31, 2022
Allowance for doubtful accounts and returns$14 $29 $17 $26 
Inventory reserves3,050 312 835 2,527 
Valuation allowance for deferred tax assets18,931 1,833 — 20,764