The defrost timer be using for the refrigerator, refrigeration equipment, oven and washing machine, etc. 1. Low noise; 2. Excellent design for construction, anti-seismis.and anti-pound; 3. Imported raw material, wet-resistant&heat-resisting; 4. Chemical treatment on the surface, anti-corroded; 5. Widely used in large refrigerators, cold storages freezers and various refrigerating equipments for and in various devices for time control Technical Parameters: 1. Electric parameters: 20V 50/60Hz 3W; 110V 50/60Hz 3W 2. Operating Time: 6H/8H/10H 3. Defrosting Time: 20/21/25/30minuts or according to customers' requeirement 4. Working Life: more than 100000 times deforsting