Cyalume Technologies (CYLU) 10-Q 2010 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION

Each of the undersigned officers of Cyalume Technologies Holdings, Inc. (the "Company") hereby certifies that, to his knowledge, the Company's Quarterly Report on Form 10-Q to which this certification is attached (the "Report"), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 11, 2010	/s/  DEREK DUNAWAY
	Derek Dunaway, Chief Executive Officer
	(the Principal Executive Officer)

Date: August 11, 2010	/s/  MICHAEL BIELONKO
	Michael Bielonko, Chief Financial Officer
	(the Principal Financial Officer)

This certification is being furnished and not filed, and shall not be incorporated into any document for any purpose, under the Securities Exchange Act of 1934 or the Securities Act of 1933.