The multi-fuel TLR-1 HP-X features a hinged face cap with robust release controls that allow for front-loaded battery changes without removing the light from the firearm. Customizable rear paddle switches, momentary and constant on operation and a programmable strobe mode offer additional versatility for many applications. Multi-Fuel: Uses (2) Streamlight SL-B9 protected Li-Ion USB-C rechargeable battery packs or (2) CR123A lithium batteries SL-B9: 1,300 lumens; 77,000 candela; 555m beam distance; runs 1 hour CR123A: 1,000 lumens; 53,000 candela; 460m beam distance; runs 1.5 hours Front-loading battery compartment for rapid battery replacement Rail grip clamp system securely attaches/detaches quickly and safely with no tools and without putting your hands in front of the muzzle Includes keys for a variety of full-size and compact railed handguns 6000 Series machined aircraft aluminum with black anodized finish User-programmable strobe Ambidextrous momentary/constant on operation Operating Temperature: -4AdegF to +120AdegF (SL-B9) or -40AdegF to +120AdegF (CR123A) IPX7 waterproof to 1m for 30 minutes Length: 3.70 in (9.40 cm); Weight w/ SL-B9: 5.43 oz (154g); Weight w/ CR123A: 5.20 oz (148g) Limited lifetime warranty Assembled in the USA