MarchMore SupFire A6-T6 LED flashlights with CREE XM-L T6 LED and rechargeable lithium battery. Case Material: Aerospace grade aluminum 6061-T6 Light source: imported XM-L T6 Power source: one 18650 rechargeable lithium battery Drive circuit: constant current drive circuit Surface treatment: hard anodized Mode: Strong Weak explosive flash Waterproof grade; IP67 Operating voltage :3.7-6V Switch mode: tail waterproof button switch Beam Brightness: 700 lumens Lighting time: 120 minutes Dimensions: Length 130MM diameter 27MM