Attributes . Source: External in-line power supply; Input Voltage: 100–240 VAC, 50/60 Hz; Input Current: 1 Amp, maximum; Output Voltage: 12 VDC; Output Current: 2.5 Amps, maximum; Consumption: 30 Watts; Heat Dissipation: 12 VDC x 2.5 Amps, BTU/h MAX (Voltage x Nominal Current) 3.41 = BTU/h . Names