Lifesaving Systems Corp SIRIUS LED Strobe Light - US Coast Guard Approved Signaling Strobe, Exceeds SOLAS Requirements - Made in USA HIGH PERFORMANCE STROBE  Visible from over 3.5 miles away, this light will flash a bright white signal 60 times a minute for over 18 hours, and flash with reduced brightness for 5+ days. EXTREMELY TOUGH GEAR  LSC designs and manufactures critical maritime rescue and survival equipment used in some of the harshest environments on earth. This safety signaling strobe is no different. It is constructed of high-strength ABS plastic with a high-impact resistant clear lens. RELIABLE & SIMPLE  Lost at sea with one chance at survival, you want the gear you can rely on. That is why we inspect and test each and every strobe light we produce. Easily operated with gloved hands, the LED light is activated with a single slide switch. US COAST GUARD APPROVED  U.S.C.G. SOLAS Approval 161.112/77/0.