Specification: Host: Black / integrated head. Mode: 1%-10%-40%-100% (Double click side switch ---> strobe). Max output current: XHP70.3 HI 8amps. Switch: tail switch controls on/off, side switch controls the mode. Reflector: LED: XHP70.3 HI soldered on 20mm copper plate. Max flux: 5200LM. Waterproof level: IPX6. Battery: It is runs on 2pcs 21700 batteries. Head diameter: 55mm. Outer diameter of battery tube: 27.9mm. Inner diameter of the battery tube: 22mm. Flashlight length: 240.6mm. Net weight: 320g. Packaging weight: 385g (battery not included). Package: 1*M21G Flashlight