Streamlight TLR-7X, 500 Lumens, 1 Hour Runtime, Duel Fuel, Matte Finish, Flat Dark Earth, Includes High and Low Switch, (1) SL-B9 Rechargeable Battery, USB Charging Cable 69456 The TLR-7 series is going rechargeable. The TLR-7 X multi-fuel rail-mounted light accepts either Streamlight's SL-B9 USB rechargeable protected lithium-ion battery pack or a CR123A lithium battery. Interchangeable rear paddle switches accommodate your shooting style.