Streamlight TLR-1 HPL - C4 LED technology, impervious to shock with a 50,000 hour lifetime - 775 lumens; 438m beam distance; 48,000 candela peak beam intensity; runs 1.75 hours - Mounts directly to all MIL-STD-1913 (Picatinny) rails and weapons with Glock-style rails - Includes rail locating keys for mounting to a variety of rails and lithium batteries. - Available with either standard door switch or remote door switch. Standard Switch: Ambidextrous momentary/steady On-Off. Remote Switch: Momentary/steady On-Off and port plug for remote switch assembly - Tethered battery door and latch mechanism prevents battery door loss while providing easy battery replacement. - One handed snap-on and tighten interface keeps hands away from muzzle when attaching/detaching - Extensively live-fire tested impact resistant construction - Deep dish parabolic reflector produces long-range targeting beam with optimum peripheral illumination - Powered by two 3V CR123A lithium batteries (included) - Durable anodized aluminum construction - Unbreakable polycarbonate lens with scratch-resistant coating - IPX7 rated design; waterproof to 1 meter for 30 minutes - Operating temperature: -40F to +120F - Serialized for positive identification - Length with standard switch: 4.83 in. (12.27 cm) - Length with remote switch: 5.25 in (13.34 cm) - 5.3 oz (150.3 grams) with standard switch and batteries - 5.6 oz (158.8 grams) with remote switch and batteries - Long Gun Kit available (#69219). Kit includes TLR-1 HPL with thumb screw, safe off door switch, remote pressure switch and mounting clips, and two 3V CR123A lithium batteries.