The Thermo Cube is a unique, patented electrical device that plugs into a standard 15 amp electrical outlet and turns power on automatically according to outside air temperature, saving money by using power only when temperatures require heating or cooling. There are five models available with different temperature ranges to choose from. Each unit has two receptacles for use with more than one eleThe Thermo Cube is a unique, patented electrical device that plugs into a standard 15 amp electrical outlet and turns power on automatically according to outside air temperature, saving money by using power only when temperatures require heating or cooling. There are five models available with different temperature ranges to choose from. Each unit has two receptacles for use with more than one ele... More Details And Product Review Farm Innovators TC-3 Cold Weather Thermo Cube Thermostatically Controlled Outlet - On at 35-Degrees/Off at 45-Degrees , Lowest Price for Farm Innovators TC-3 Cold Weather Thermo Cube Thermostatically Controlled Outlet - On at 35-Degrees/Off at 45-Degrees , Farm Innovators TC-3 Cold Weather Thermo Cube Thermostatically Controlled Outlet - On at 35-Degrees/Off at 45-Degrees For Sale.