Product Name：?[high grade ceiling ventilator fans] Product Type ：?T908 Rated Voltage: 250V/230V/220V/110V Rated frequency: 50Hz/60Hz Rated input power: 45W Air Output: 170m3/h~ 365m3/h Noise: ≤50dB Installation dimensions (L﹡W): 250﹡250 Cover material : ABS With two function of illumination and ventilation, elegance and nobleness in appearance. Adopting advanced ABS material for outer cover, with function of corrosion-resistance and anti-discolor protection