The TLR-8 HL-X sub high-lumen, rail-mounted light is engineered to produce a longer reaching beam. It accepts either Streamlight's SL-B9 USB-C rechargeable protected lithium-ion battery pack or a single CR123A lithium battery. Interchangeable rear paddle switches accommodate your shooting style. Multi-fuel: Uses (1) Streamlight SL-B9 protected Li-Ion USB-C rechargeable battery pack (included) or (1) CR123A lithium battery Engineered to produce a longer reaching beam SL-B9: 1,000 lumens; 10,000 candela; 200m beam; runs 30 minutes (default) or programmable to 500 lumens; 5,000 candela; 141m beam; runs 1 hour CR123A: 500 lumens; 5,000 candela; 141m beam; runs 1.5 hours Laser mode runs 29 hours 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 Securely attaches to select subcompact handguns: SIG SAUER P365 and P365 XL (closed rail systems) Length: 2.51 in (6.38 cm) Weight w/ SL-B9: 2.87 oz (81.4g); Weight w/ CR123A: 2.77 oz (78.5g) IPX4 water-resistant Limited lifetime warranty Assembled in the USA