What voltage does the Wiser Plug support? Follow Works with standard UK mains wall socket (230V a.c.) Related articles Can I plug any electrical device to the Wiser Plug? What happens with my Wiser Plugs when I activate Wiser’s Away Mode? Getting to know your Wiser Plug How many devices can one Wiser Plug support as an RF signal range extender? Which thermostats are required to control the Wiser Electrical Heat Switch? Comments 0 comments Please sign in to leave a comment.