The Streamlight TLR-1 HL Tactical Illuminator Flashlight is the gold standard in weaponlights; ideal for everything from duty weapons to home defense firearms. Streamlight's Rail Grip Clamp system allows the TLR-1 HL to be used on all firearms with Glock-style or MIL STD 1913 rails. This unique system installs in just a few seconds, is extremely secure and still allows for quick removal when needed. All TLR models features Streamlight's proprietary C4 LED technology which puts out an impressive 1000 lumens! The light will run for 1.75 hours on 2 CR123A Lithium Batteries (included). The body of the Streamlight TLR-1 HL is constructed of rugged, yet lightweight aluminum; and is water, shock and dustproof. The TLR-1 HL is covered by Streamlight's limited lifetime warranty.Specifications and Features: Attachment Method: Universal Rail Batteries Included: Yes Battery Type: CR123A Bulb Color: White Bulb Type: C4 LED Light Output High: 1000 Lumens Material: Aluminum Rechargeable: No Run Time High: 105 Minutes Strobe: No Switch Type: Ambidextrous Warranty: Limited Lifetime Waterproof: Yes