The Streamlight TLR-7A Flex Weapon Light is a small and mighty 500 Lumen tactical weapon light with two switch configurations. The new TLR-7A includes customized ergonomic switches featuring a low or high position to match your shooting style. It features an ambidextrous on/off switch and a rail clamp that is designed to rapidly attach/detach from the side of compact and full frame weapons. Its low-profile design prevents snagging and a "safe off" feature prevents accidental activation, saving batteries.Specifications and Features: Attachment Method: Picatinny Rail Batteries Included: Yes Battery Type: CR123A Beam Distance: 460 Feet Bulb Color: White Bulb Type: LED Light Output High: 500 Lumens Material: Aluminum Run Time High: 1.5 Minutes Strobe: Yes Switch Type: Dual Tail Switch Warranty: Limited Lifetime Waterproof: Yes