Brand: Ultra Fire Model: WF-502B Emitter Brand/Type: Cree Emitter BIN: XPE-WC R2 Color BIN: White Total Emitters: 1 Battery Configurations: 1x 18650 lithium battery Voltage Input: 2.6~4.2V 4.2V max Switch Type: Clicky (Clickie) Switch Location: Tailcap (Tail-cap) Modes: 5 Mode Memory: Circuitry Features Mode Memory Mode Arrangement: Hi 280LM 1200mA > Mid 200LM 800mA > Low 120LM 500mA > Fast Strobe 200LM 1000mA > SOS 250LM 1200mA Circuitry: Digital Regulated 1200mA Current Output Brightness: 280 lumens maximum brightness (manufactuer rated) Runtime: Hi: 120 minutes with 2400mA Battery (manufactuer rated) Lens: Coated Glass Lens Reflector: Aluminum Textured/OP Reflector Carrying Clip: Belt-Clip Included Carrying Strap: