A personal signal light to mark for example an ascent line when diving on wrecks or as a reference in overhead diving. This light will give you a clear signal from a distance with its strong pulsing light going out in all directions.   Boasting over 3000 lumens of light powered by a rechargeable 26650 battery (included) this light should be a part of any divers safety equipment when diving in dark environments   Included 26650 rechargeable battery  Nylon case  Charger  Wrist safety line Technical Features Lumen: 3000 Depth rating: 150m Burn time in strobe mode: Up to 6h Burn time in constant light mode: up to 3.5h Weight 230g Dimensions Length: 13cm Diameter: 4cm