High Output - 42,000 Candela center-spot/800 Lumen peripheral light; Low Output - 21,000 Candela center-spot/400 Lumen peripheral light; Provides flawless identification/illumination and can temporarily impairing your target's dark adapted vision; Ideal for use on pistols, also compatible with any weapon with a MIL-STD 1913 Picatinny rail; CNC milled 7075 anodized aluminum construction; 2000g shock resistant; IPX8 water resistant