Size: 120x120x38mm? Model: DP200A 2123XBT.GN? bearing structure ball bearings? Voltage: 220 ~ 240V ACCurrent: 0.14 / 0.12A? Power: 22 / 21W? Frequency: 50/60 (Hz)? Weight: 550 (g)?Speed: 2850 / 3150RPM?Noise: 45 / 50DBA?Static pressure: 0.34 / 0.39Inch-H2O?Use of the environment: -20 °C~ 85 °C