Greenhouse Fans, Italian Standard Blade diameter: 1250 mm, 1380 x 1380 x 450 mm; Blade speed: 440 rpm, Air volume: 45500 m3/h, Noise: less than 60 dB, Input power: 1.1 kW, Voltage: 220/380 V, 50/60 Hz, Motor brand XIZI Motor speed: 1400 rpm. Weight: 73 kg.