Note:This is DIY Kits,you need welding it yourself Work voltage :DC 5V Working current:20ma(Brightness lowest) 270ma(highest brightness) Audio input:3.5mm Audio cable /Electret microphone Audio option: Audio cable First Led color:Red Green Blue LED brightness: Adjustable level 16 PCB Size:158mm*34.8mm The BOX Size:168mm*44.5mm*17mm Notice: When you welding it must keep the same color at transverse 3 LED