Compare SM-2, float free strobe manoverboard light USCG/SOLAS Read more Remove SM-2, float free strobe manoverboard light USCG/SOLAS Battery type: 6V lantern style or battery adapter with 4 "D" cells,(not included) The strobe is active a minimum of 60 hours with a light intensity of up to 8 candela and a flash rate of 60 flashes per minute Flashes when thrown overboard or upright Size: 350 mm x 122 mm Weight: 1.5 kg Delivered complete with mounting bracket.