Color Grey + Purple Brand TrustFire Model TR-D008 Quantity 1 Piece Material Aluminum alloy Emitter Brand Cree LED Type XM-L2 Emitter BIN T6 Number of Emitters 3 Color BIN Cool White Working Voltage 2.8-4.2 V Power Supply 4 x 18650 batteries set Current 2500 mA Theoretical Lumens 2000 lumens Actual Lumens 1100 lumens Runtime 2-3 Hour Number of Modes 3 Mode Arrangement HiLowFast Strobe Mode Memory No Switch Type Reverse clicky Lens Glass Reflector Aluminum Smooth Flashlight Mounting Handlebar Switch Location Tailcap Beam Range 120 m Bike Lamp Interface Size 5.5 x 2.1mm Battery Pack Interface Size 5.5 x 2.1mm Packing List 1 x Bike lamp (cable-67cm) 1 x 8000mAh battery set (Four in parallel 4.2V / 27cm) 1 x Chinese / English user manual 1 x US-Plug power adapter (100~240V / 103cm) 1 x Rubber ring