Low Voltage Magnetic Transformer Technomagnet 600 Watts 120 Volts to 12 Volts Dual Circuit Black Magnetic Transformer, 600 watts Primary 120 Volt, Secondary 12 Volts Dual Circuit, 300 Watts per Circuit black powder coat finish to resist corrosion 4 11/16 inch L, 4 1/4 inch W, 9 7/16 inch H