? Size: 120x120x38MM? Model: DP200A P/N 2123XSL? bearing structure:S: Sleeve (Oil bearing)? Voltage: 220~240V (AC)? Power: 29/31 (W)? Frequency: 50/60 (Hz)? Speed: 2700-3100 (R / min)? Air volume: 2.68 / 3.25 (m3 / min)? Noise: 43/46 (dB-A)? Weight: 550 (g)? Packing: no separate packaging, ordinary carton packaging 40/1 Zhengxiang;? frame: black paint aluminum alloy die-casting anti-corrosion, moisture-proof structure;? fan: injection molding, PBT + 30% glass + VO grade flame retardant;? Bearing:Low noise imported oil bearing;?Insulation: enameled wire with B-class insulation, temperature 120 degrees Celsius;? Wiring method: lead type (line length 25CM)Insulation resistance: 500 megohm above;? withstand voltage: leakage current 0.5mA. Withstand voltage 1500V / 1 minute;? Operating voltage:110V (voltage range: 85V~125V)? Operating voltage: 220V (voltage range: 185V~245V)? fan rotation: counterclockwise from the direction of the fan;? Ambient temperature (°): - 20 °~ 50 ° B: (oil bearing)? life: working environment temperature 40 ° B: (oil bearing) 30000 (hours)