Crew overboard light automatically rights itself and activates when in the water with the reliable gravity switch. Provides a minimum of 3 candela of light with its 360° high-intensity Xenon strobe. UV-stable PVC housing. Uses a 6V screw-terminal battery (sold separately, Model 4482451) to deliver a 60-hour signal. Includes bulkhead bracket mount. USCG and SOLAS approved. 13.8" x 4.8"dia.