Specification: LED Flashlight Material: Aluminum Alloy Power Source: one 18650 Li-ion battery or 3x AAA batteries Max Brightness: 4000LM Irradiation distance: 200-500m Water-resistant(IPX5) : 5 grade Shock-proof: approx. 1.5M Length: 12.9cm Head Diameter: 32mm Bottom Diameter: 25mm Net Weight: 87g Battery Charger Input: AC110-220V 47-63HZ Output: 3.7V; 450mAh Batter Material: Li-ion Battery Voltage: 3.7V Capacity: 4200mAh Size: 65x18mm About LED Flashlight This High Quality Water-Resistant 4000LM Led flashlight/Torch with Dimmer, through adjusting the telescoping head,you can get spot beam and flood beamas you need. Ideal for cavers, forest explorers, hunter, fisher etc? Features: -Using XM-L T6 lamps, Max brightness 4000LM,Irradiation distance 200-500m - Internal wiring applies constant current output, working range is wide, and can utilize the batteries in the largest extent. -Five modeswith one button : high light, middle light, low light, strobe and SOS light for your choice. - Zoom in Zoom out -Aluminum alloy casingand skid-proof design, feel more comfortable - Widely used in outdoor activities such as mountain climbing, camping, hiking, forest exploring, Or used at home like repairing or finding small thing. About 18650 Battery - BRC 18650 3.7V 4200mAh Rechargeable protected Li-ion Battery - Over temperature and over current protection - Short-circuit protection Environment friendly - Widely used on torch, laser pointer, as emergency lighting and other portable devices Note: The product has no battery and no charger, and is packed in a carton