Product Specifications: - Double Speed: Low/High - Voltage: 110/220 V - Frequency: 50 Hz/60hz - Power: 44-54W / 53-65W - Speed: 1850/2550 (RPM) - Air Volume: 410-530 m⊃3;/h - Air Pressure: 240/300 Pa - Noise: 29/33 dB - Life: Over 50000 Hours - Current (Amps): 0.19-0.22/ 0.49- 0.58 - Electric Current Type: AC - Blade Material: ABS Plastic - Item Dimensions: 12.5*7.9*8.3 Inch - Diameter: 6 Inch