Multi-fuel: Uses one (1) Streamlight SL-B9 protected Li-Ion USB-C rechargeable battery pack or one (1) CR123A lithium battery 500 lumens; 5,000 candela; 140m beam; runs 1.5 hours (CR123A), runs 1 hour (SL-B9) Ambidextrous rear paddle switches with HIGH and LOW options Safe-off feature prevents accidental activation; saves batteries Rail grip clamp securely attaches/detaches without putting your hands in front of the muzzle Durable, anodized machined aluminum construction User-enabled strobe function Length: 2.58 in (6.55 cm); Weight w/ SL-B9: 2.64 oz (74.8 g); Weight w/ CR123A: 2.48 oz (70.3 g) IPX7 waterproof to 1m for 30 minutes Available in Black and Flat Dark Earth (FDE) colors Assembled in the USA