Brand: UltraFire Model: WF-501B Emitter Brand: Cree LED Type: XM-L BIN: T6 Color: White Number of Emitter: 1 Voltage Input: 3.7~10V Battery Configuration: 1 x 18650 battery or 2 x 16340 batteries (not included) Circuitry: Digital Regulated 1200mA Current Output Brightness: 350LM Runtime: 80 minutes (manufacturer rated) Number of Modes: 1 Mode Arrangement: - Mode Memory: - Switch Type: Reverse clicky Switch Location: Tailcap Lens: Glass Lens Reflector: Aluminum Textured/OP Beam Range: - Strap Included: Yes Clip Included: No Dimensions: 5.28 in x 1.26 in x 1.26 in (13.4 cm x 3.2 cm x 3.2 cm)<img src="http://112.74.112.28/down/products/110063/110063_000.jpg" noproxy>