CONSENT OF INDEPENDENT REGISTERED PUBLIC
Cyalume Technologies Holdings, Inc.
Fort Lauderdale, Florida
We hereby consent to the incorporation by reference in the Registration
Statement on Form S-8 (No. 33-161569) of Cyalume Technologies Holdings, Inc. of our report dated March 31, 2015, relating to the
consolidated financial statements and schedule, which appears in this Form 10-K. Our report contains an explanatory paragraph regarding
the Company’s ability to continue as a going concern.
/s/ BDO USA, LLP
March 31, 2015