ITEM NAME:Mini Amplifier Board 20W+20W Class D 12V 24V 4A Stereo Audio Dual Channe PNF Descriptio n Description: Power supply voltage: DC-12V-22V Chip voltage range: DC8V-26V Rated power: 20W+20W Output impedance: 4-8 ohms Peak power: 35W+35W Maximum dynamic current: 4A Quiescent current: