Highlights: Features a Cree XR-E P4 emitter Glass lens with aluminum textured reflector 3W Regulated Circuitry Takes 2x 18650 or 2x 17670 (rechargeable OK) Switch type: clicky on/off Specification: Dimensions (cm): 3.2 x 3.2 x 19.8 Weight (Kg): 0.1714 Package Contents:1 x