Insulated Switch and Outlet Covers - Home Package Insulated Switch and Outlet Covers. PLEASE SPECIFY WHITE OR IVORY. Replace all of your socket and switch plates with our insulated wall plate systems. Not only is installation fast and easy, but it is also inexpensive. They are a great way to minimize your heating and cooling consumption. Includes: 36-duplex, 10-switch, 1-switch/duplex combo, 4-2-switch, 4-phone, 4-cable, 1-3-switch.