Color Black + Blue Brand OthersLaoLang Model LY01 Quantity 1 Set Material PC Emitter Brand Others- LED Type OthersSMD LED Emitter BIN LED Color BIN RedBlue Number of Emitters 9 Input Voltage 1.5~3.7 V Battery 1*1.5V AA OR 1*14500 Battery included or not No Current 500 mA Theoretical Lumens 120 lumens Actual Lumens 100 lumens Runtime 6 Hour Number of Modes 9 Mode Arrangement MidSlow StrobeFast Strobe Mode Memory No Switch Type Clicky Switch Switch Location Tailcap Beam Range - cm Strap/Clip Clip included Application Seat Post Holder Diameter 2.8 cm Waterproof Yes Packing List 1 x Bike tailight 1 x Clip