... *H), 1pcs 5.5 kw fan outside, belt drive, the air capacity is 16000m3/h. Electric damperType of sealing3folds of PVC curtains ... -filter, fiberglass filterLighting system8 units*4=32 pcs*36wControl systemControl fan, lighting, electric damperVoltage and frequency3*380v, 1*220v, 50HZTotal power6.7kw