Color Blue + Black Brand UltraFire Model MT-40 Quantity 1 Piece Material Aluminum alloy Emitter Brand Cree LED Type XM-L Emitter BIN T6 Number of Emitters 1 Color BIN Cool White Working Voltage 7.2~8.4 V Power Supply 7.2~8.4 battery pack Current 2500 mA Theoretical Lumens 900 lumens Actual Lumens 600 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 150 m Bike Lamp Interface Size 5.5 x 2.1mm Battery Pack Interface Size 5.5 x 2.1mm Other Features With glow-in-the-dark mark on the power switch for easier operation at night. Packing List 1 x Lamp (cable length: 70cm) 2 x Fixed rubber rings