Brand NITEFIRE Model NFC-27 Quantity 1 Color Black Material Aluminum alloy Emitter Brand Cree LED Type XM-L Emitter BIN T6 Color BIN Cool White Number of Emitters 2 Working Voltage 8.4 V Battery Configuration 4 x 18650 batteries pack (included) Circuitry 2500mA Brightness 1200 lm Runtime 1~2 hours Number of Modes 3 Mode Arrangement Hi > Mid > Lo Mode Memory No Switch Type Reverse clicky Switch Location Tailcap Lens Glass Reflector Aluminum Smooth Flashlight Mounting Handlebar and helmet Beam Range 200 meters Strap Included No Clip Included No Features Hard anodized; The characteristics of this product: Add a Flashing outer ring on the head light make it more dazzling than others. There are 2 buttons on the tail of this light the left red button controls the outer ring the mode is: High > Fast strobe; the right black button controls the main light the mode is: Hi > Mid > Lo these 2 buttons can control on the same times the lights can work together; Battery pack two parallel connection and two series connection battery pack capacity: 3000mA Packing List 1 x Bike light (35cm-cable) 2 x Rubber rings 1 x Battery pack (45cm-cable) 1 x AC power charger adapter (AC 100~240V / 2-flat-pin plug / 110cm-cable) 1 x Head strap (52cm) 1 x English user manual