Color Black + Red Brand N/A Model M11 Quantity 1 Piece Material Aluminum alloy + plastic Emitter Brand Cree LED Type XM-L2 Emitter BIN U2 Color BIN Cool White Number of Emitters 1 Working Voltage 3.7~7.4 V Power Supply 1 x 18650 / 2 x 18650 (not included) Current 1600 mA Theoretical Lumens 400 lumens Actual Lumens 400 lumens Runtime 3 Hour Number of Modes 3 Mode Arrangement HiMidFast Strobe Mode Memory No Switch Type Reverse clicky Switch Location Tailcap Lens Plastic Reflector No Band Length 45 cm Compatible Circumference 40~52 Beam Range 200 cm Packing List 1 x Headlamp 1 x Power adapter (100~250V / US plug / 50cm)