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AMERICAS
US Legal Services

J. Neil McMurdie
Senior Counsel
(860) 580-2824
Fax: (860) 580-4844
neil.mcmurdie@us.ing.com

April 30, 2010

BY EDGARLINK

U.S. Securities and Exchange Commission
100 F Street, NE
Washington, DC 20549

Re:	Security Life of Denver Insurance Company
	Security Life Separate Account L1
	Prospectus Title: ING VUL-CV
	File Nos.: 333-147534 and 811-08292
	Rule 497(j) Filing

Ladies and Gentlemen:

On behalf of Security Life of Denver Insurance Company and its Security Life Separate Account L1, we hereby certify pursuant to Rule 497(j) of the Securities Act of 1933, as amended, that:

• The form of Prospectus, Prospectus Supplement and Statement of Additional Information that would have been filed under Rule 497(c) would not have differed from that contained in the most recent post- effective amendment to the above-referenced Registration Statement; and
• The text of the most recent post-effective amendment to the above-referenced Registration Statement was filed electronically by EDGARLink on April 12, 2010.

If you have any questions regarding this submission, please call the undersigned at 860-580-2824.

Sincerely,

/s/ J. Neil McMurdie
J. Neil McMurdie

Windsor Site	ING North America Insurance Corporation
One Orange Way, C1S
Windsor, CT 06095-4774