Color Grey Brand ZHISHUNJIA Model ZSJ-B50A Quantity 1 Piece Material Aluminum alloy Emitter Brand Cree LED Type XM-L Emitter BIN T6 Number of Emitters 5 Color BIN White Working Voltage 8.4 V Power Supply 4 x 18650 (4800mAh included) Current 3.4 A Theoretical Lumens 4800 lumens Actual Lumens 3800 lumens Runtime 4 Hour Number of Modes 3 Mode Arrangement HiLowFast Strobe Mode Memory No Switch Type Forward clicky Lens Glass Reflector Aluminum Smooth Flashlight Mounting Handlebar and Helmet Switch Location Tailcap Beam Range 300 m Bike Lamp Interface Size 3.5mm Battery Pack Interface Size 3.5mm Packing List 1 x Bicycle light (80cm-cable) 1 x Battery pack (25cm-cable 3 in parallel and 2 in series) 1 x 2-flat-pin plug power charger (100~240V / 90cm) 2 x Rubber rings