When installing a Urspring, a power connection is required which should not be more than 1.5 m from the installation location of the filter. The connection must provide 230 VAC, 50 Hz or 110 VAC, 60 Hz. The Urspring needs about 1.5W of electricity (12 VDC). A power supply unit with different connector faces (DE, USA, China) is included. A supply of the Urspring with 12 VDC works, but you have to "lend a hand" there yourself and the solution is not officially suported by us.