7'' twin window fan * With ETL * Fit for most of window. * Together with pedestal, also can be placed on floor, table 7'' Window fan* Power supply: 110V, 50HZ,50W* 2 speed* Built-in adjustable locking slide screens* Product Size: 55*13.5*28.5cm* 1pc/color box* Carton size: 58*12.5*30cm* Qty/20': 1270 pcs* Qty/40': 2590 pcs* Qty/40HQ': 3040 pcsWe also have another window fan is CH-5500-09 (8'', ...