1. Dual Function Kit: Contains thermal overload protector + 15Ohm start relay, complete repair parts for 1/5HP compressors. 2. Wide Compatibility: Works for portable freezers, car refrigerators, wine coolers and beverage beer chillers. 3. Overheat Protection: Thermal cut-off design prevents compressor burnout and extends refrigeration unit service life. 4. Stable Startup: 15 Ohm relay delivers smooth startup, fixes fridge not cooling or failing to turn on issues. 5. Direct Replacement: Plug-and-play design, easy DIY installation without complicated wiring modification.