About this item APPLIANCE PROTECTION: Specifically designed to safeguard domestic refrigerators, freezers, water coolers, and similar appliances. HIGH CAPACITY: Capable of handling appliances with power requirements up to 1800 watts. SAFETY ASSURANCE: Incorporates a 4-minute safety cycle to ensure consistent performance during voltage fluctuations. INTELLIGENT COMPATIBILITY: Automatically adapts to both 50Hz and 60Hz power frequencies for universal use. SAFETY FEATURES: Equipped with a detachable ground pin and operates safely within AC 85-135V range. Dimensions: 8 x 3.5 x 7 inches.