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In recent years general merchandise and hardware stores have been marketing devices to be inserted in the power supply of refrigerators and other motor driven appliances that are advertised as a technology to reduce electric energy use and cost. The purpose of this research was to procure and test one of these devices. The testing included examining how the device modifies the standard 60 cps and sinusoidal voltage power supply and then to determine the corresponding change in electric power consumption by an induction motor as a function of mechanical load. The load is the product of motor speed which is nominally constant and the torque which is variable. The torque depends upon a combination of compressor characteristics and the low and high side pressures of the freon which is a function of the evaporator and condenser temperatures.