Color custom10000 Brand SingFire Model SF-90 Quantity 1 Piece Material Aluminum alloy Emitter Brand SSC LED Type P7 Emitter BIN otehrsD Number of Emitters 1 Color BIN White Working Voltage 8.4 V Power Supply 1 x 4-18650 Li-ion battery pack 8.4V (2 in serial and 2 in parallel) Current 3 A Theoretical Lumens 1000 lumens Actual Lumens 1000 lumens Runtime 3~4 Hour Number of Modes 4 Mode Arrangement HiMidLowFast Strobe Mode Memory No Switch Type Reverse clicky Lens Glass Reflector Aluminum Textured Flashlight Mounting Handlebar and Helmet Switch Location Tailcap Beam Range 200 m Bike Lamp Interface Size 5.5 x 2.5mm Battery Pack Interface Size 5.5 x 2.5mm Other Features Hard anodizing; Ultra brightness Certification CE Packing List 1 x Bike light (56-cm cable ) 1 x AC power charger (Input: AC 100~240V 50~60Hz; Output: DC 8.4V 1000mA; 114cm-cable US Plug) 1 x 4-18650 Li-ion battery pack 1 x Head band 2 x Silicone rings 1 x English user manual