Product Parameters size: 420(width)*380(height)*550(length)mm working voltage: 220V/50Hz temperature period can be set: 35-70 degree noise: 45Db nei weight: 15.5kg layers number: 10 layers layer size: 396*369mm the spacing between upper and lower layer: 35mm grid spacing: 6mm material: stainless steel power: total 1000W(heating tube 980W,fan 20W) max timing: 15 hours note: the heating tube will not continue working,it will power off when the temperature is up to the temperature you set before