The Lithium Battery Lifejacket Light Manual M3, with part number 1130, is a robust safety device designed to enhance the visibility of individuals in maritime environments. It features a durable ABS Polycarbonate/TPE construction and a white flashing LED light that guarantees a minimum output of 0.75 cd for at least 8 hours. This lightweight unit, at approximately 31.3 grams, operates within a wide range of temperatures and has a storage life of 5 years. The manual water/manual activation mechanism ensures ease of use in emergencies, and it meets the stringent requirements of SOLAS, MED, and USCG approval classifications.