Streamlight TLR-7X, 500 Lumens, 1.5 Hour Runtime, Duel Fuel, Matte Finish, Flat Dark Earth, Inlcudes High/ Low Switch, (1) CR123A Battery 69429 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.