Color Deep Pink Brand LetterFire Model DD Quantity 1 Piece Material Aluminum alloy Emitter Brand Cree LED Type XM-L Emitter BIN U2 Number of Emitters 1 Color BIN Cool White Working Voltage 8.4 V Power Supply 4 x 18650 2P2S 3500mAh Current 2.8 A Theoretical Lumens 1200 lumens Actual Lumens 800 lumens Runtime 2 Hour Number of Modes 3 Mode Arrangement HiLowFast Strobe Mode Memory No Switch Type Reverse clicky Lens Glass Reflector Aluminum Smooth Flashlight Mounting Handlebar and Helmet Switch Location Tailcap Beam Range 200 m Bike Lamp Interface Size 2.5 x 5.5mm Battery Pack Interface Size 2.5 x 5.5mm Other Features Easy to install and use;Bright and stable lighting; Special lamp base with better cooling function. Packing List 1 x Bike light (71cm cable) 1 x Battery (40cm) 1 x 100~240V US plug charger (105cm) 2 x Rubber rings 1 x Head strap (18cm)