StreamlightLast year Streamlight announced that the FBI had signed a five-year contract to issue the ProTac HL-X flashlight to its agents. The ProTac HL-X tactical flashlight is a dual fuel model that can be powered by a rechargeable battery pack or two CR123 disposable batteries. The robust construction of the ProTac HL-X is immediately noticeable when you first hold it. Runtimes for the ProTac HL-X vary according to the fuel that you use. The ProTac HL-X is an excellent backup flashlight for uniform officers or primary light for plainclothes officers.