LED flashlight Emitter Type:CREE LED with longlifespan 100,000 HoursMax output240 LumensReflector :OP textured reflectorPower Supply:3*AA Battery; Working Voltage:4.5VMode IOutput Mode:Continuous Runtime:3 HoursMaterial:High quality special treatment Anti Corrosion plastic housingWaterproof: To IPX68 StandardL:202mm D:40mm (Head) D:33mm(Tail) N.W.:146g (Excluing Battery). Revolving Switch: This design guarantee waterproof when the power is on/off. Three waterproof O-rings in the head.