Note that the PicoBoo must be powered by its provided 12VDC power supply. And then a separate power supply is required to supply power to the 24VDC device that the PicoBoo will be controlling. This 24VDC power supply must provide enough wattage (amps) for the device you are controlling. For example, small solenoid valves only require a 24VDC 1Amp but larger solenoid valves (such as our High-Flow 2-Way) require larger 2.5Amp or 5Amp.