6 pcs Voltage Protector Brownout Surge Refrigerator 1800 Watts Appliance USE ON: Refrigerators, Freezers, Water Coolers or any Appliance with a max current of 15 amps. Protect your appliance from HIGH voltage (140 VAC) or LOW Voltage (90 VAC) by interrupting the current flow. Over Voltage Disconnection Detachable Ground Wire 3 Minutes Safety Cycle