... driver,it adopts PTC starter, ,220-240v,50hz,1/2HP,1/3HP.1/4HP,1/5HP Refrigerator compressor, freezer compresoor,fridge compressor.hermetical piston ... driver,it adopts PTC starter, ,220-240v,50hz,1/2HP,1/3HP.1/4HP,1/5HPthe refrigerants are R134a,R600a, ,the compressors are ... refrigerator,freezing refrigeration,dehumidifier etc. let type. LOW BACK PRESSURE hermetic COMPRESSOR,REFRIGERATOR COMPRESSOR