The Streamlight TLR-7 X USB is a compact, multi-fuel weapon light designed for full-size and compact pistols in a Flat Dark Earth finish. It delivers 500 lumens and 5,000 candela with a 140-meter reach, utilizing either the included SL-B9 USB-C rechargeable battery or a standard CR123A lithium cell. Constructed from rugged machined aluminum, the 2.48-ounce unit is waterproof and features a specialized rail clamp for safe, one-handed attachment away from the muzzle. It offers maximum versatility through customizable rear paddle switches that support momentary and constant-on operation, alongside a programmable strobe mode. This 2.58-inch tactical light is compatible with a wide range of firearms, including Glock, Sig Sauer, S&W, and Beretta models.