Streamlight Protac HL4 2200 Lumens The ProTac HL4 is the newest and brightest addition to the ProTac series, offering the latest in power LED technology and three different user selectable programs. This dual fuel flashlight accepts two battery types: four CR123A batteries or two Streamlight 18650 Li Ion rechargeable batteries. The output from the C4 LED results in one of the brightest tactical lights available, providing a wide beam pattern that will illuminate an entire area. Features: 2200 Lumens Dual Fuel: Uses four 3 Volts CR123A lithium batteries (included); also accepts two rechargeable lithium batteries TEN TAP programmable switch Durable, Non Conductive, Corrosion Proof Polymer Resin Self Adjusting Battery Cradle Accommodates Multiple Battery Sizes