An electrical transformer is a static device which is used for the transformation of AC electrical signal in one circuit to the electrical signal of the same frequency in another circuit with a little loss of power. The voltage in a circuit can be increased or decreased, but with a proportional increase or decrease in the current ratings. Type 18-0-18 transformer 4amp current output with screw clamp for easy setup low noise high efficient for working required other stuff full bridge rectifier of 8 amps and capacitor bank.