MECO(TM) Mini CREE Led Flashlight Torch Adjustable Zoom Light Lamp Average lifespan 100000 hours Also designed to mount on certain hand pistols, rifles and shotguns with proper mounting equipment Adjustable Focus ,you can Zoom in/out to adjust its beam . Waterproofing shell allows the flashlight to be used in rainy day, but don't use it under water. Suitable for hunting, cycling, climbing, camping and outdoor activity etc.