The Fenix PD40R V2.0 rechargeable flashlight features a patented rotary switch which allows you to quickly select a brightness level with a simple twist (NO REAR SWITCH ACTIVATION OR MOMENTARY CAPABILITY). No more fumbling for a small button in the dark with gloves on. Turn the switch to the right to activate the flashlight and access each mode; including turbo mode which produces an incredible 3000 lumens and throws that light 1329 feet (405m). Powered by an included 21700 rechargeable li-ion battery, this flashlight is USB Type-C rechargeable and includes a battery level indicator, so you always know the status of the battery. IP68 rated dustproof and waterproof underwater to 2 meters, this flashlight is built tough. The Fenix PD40R rechargeable flashlight is the perfect option for those looking for optimal brightness from an extremely easy to use flashlight.