Brand UltraFire Model TD-020 Quantity 1 Color Silver grey + grey Material Aviation aluminum alloy Emitter Brand SSC LED Type Z7 Emitter BIN Z7 Color BIN Neutral White Number of Emitters 1 Working Voltage 8.4 V Battery Configuration 4 x 18650 batteries Circuitry 2800mA Brightness 900 lm Runtime 2 hours Number of Modes 3 Mode Arrangement Hi > Low > Strobe Mode Memory Yes Switch Type Reverse clicky Switch Location Tailcap Lens Toughened glass Reflector Aluminum Textured Flashlight Mounting Helmet Beam Range 100m Packing List 1 x Bike Light/Headlamp 2 x Rings 1 x Band (40cm) 1 x Battery pack 1 x 100~240V power adapter (2-flat-pin plug/100cm) 1 x Chinese/English user manual