ITEM NAME:Mini TIP41C 1 CH Mono Channel Amplifier Assemble Board Pure Class A 12-30v Description: - Model:1969 small group A - Tube model:TIP41C - Output power:5W per channel - Power comsumption:20W - Power source:DC single 12-30v - Static current:Standard 25v DC down to 0.8-0.9A - Board Sizez: Approx. 5*5cm/ 1.97x 1.97inch - Resistance:fully five-color ring precision metal film resistor - Adjust resistance:sealed multi-turn adjustable resistor - Electorlytic capacitor:high-capacitance Package Included: 1 Piece digital Power audio amplifier Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test..Tube model:TIP41C. - Electorlytic capacitor:high-capacitance. - Adjust resistance:sealed multi-turn adjustable resistor. 1 Piece digital Power audio amplifier. - Output power:5W per channel. - Board Sizez: Approx.