(When the temperature is greater than 18℃, no defrosting; 18℃-15℃, defrosting for 5 minutes every 30 minutes of operation; 15℃-10℃, defrosting for 8 minutes every 30 minutes of operation; 10℃. -5℃, defrosting for 15 minutes every 30 minutes of operation; less than 1℃, defrosting for 20 minutes every 30 minutes of operation).
eBay