Exhibit 16.1

FORM 8-K ATTACHMENT - CHANGE OF ACCOUNTANTS’ LETTER

July 24, 2023

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Commissioners:

We have read the statements made by Complete Solaria, Inc. (formerly Freedom Acquisition I Corp.) under Item 4.01 of its Form 8-K dated July 24, 2023. We agree with the statements concerning our Firm in such Form 8-K; we are not in a position to agree or disagree with other statements of Complete Solaria, Inc. contained therein.

Very truly yours,

/s/ Marcum LLP

Marcum LLP

NEW YORK, NY