The Klevio device requires its own power supply unit with an output of 12 V DC, 1500 mA*. A plug socket is required for this and our installers can cut the cable of the plug to the exact length required. If you would like to hard-wire your Klevio device into the mains, we recommend that you contact an electrician to fit a fused spur (please get in touch if this is the case and we can provide a little more technical information for you to pass onto your electrician).