Brand RUSTU Model D66J Quantity 1 Color Black Material Aluminum casted Emitter Brand Cree LED Type XM-L Emitter BIN T6 Color BIN Cool White Number of Emitters 1 Working Voltage 8.4 V Battery Configuration 4 x 18650 (included) Circuitry 2100~2250mA Brightness 410 > 350 > 280 > 380 lm Runtime 4.5 hour Number of Modes 4 Mode Arrangement Hi > Mid > Lo > Fast strobe Mode Memory No Switch Type Forward clicky Switch Location Tailcap Lens Optical glass Reflector Aluminum Textured / OP Flashlight Mounting Handlebar and helmet Beam Range 220m Strap Included No Clip Included No Features Head diameter: 4cm; Body diameter: 4cm; Tail diameter: 4.2cm; Overall length: 5cm. Certification CE Packing List 1 x Headlamp (60cm) 2 x Rubber rings 1 x 2-flat-pin plug power charger (100~240V / 110cm) 1 x Adjustable headband 1 x Battery pack (25cm) 1 x English user manual