The Streamlight TLR1 HL provides 1000 lumen blast of light for maximum illumination while clearing a room or searching an alley. Its wide beam pattern lights up large areas so you can identify who or what is nearby. Lightweight compact high lumen lithium battery powered GunMounted Tactical Light featuring the latest in shockproof high power LED technology and providing 1.5 hours of continuous run time. Tethered battery door and latch mechanism prevents battery door loss while providing easy battery replacement. Rail clamp designed to rapidly attachdetach from side of weapon. When enabled strobe activated on two or more momentary paddle hits. Mounts directly to handguns with Glockstyle rails and to all Picatinny rails ambidextrous momentarysteady onoff switch and includes keys for Glockstyle Picatinny Beretta 92 SW 99 and SW TSW and Sig P320. Includes dual remote pressure switch mounting clips adhesive pad and cable ties.