多速度的粉丝(轴向的粉丝的外螺桨风扇，

Optional Voltage Range: 110V-400V , 50/60HzMotor Multi-speeds control fan with 9 blades, this speeds fan with thermal protection switch and waterproof set.Bearing type: Maintain-free NSK dual precision ball bearings.Allowable Ambient Temperature: -30 to +85 Centigrade degree (Under unconcretionary) Dielectric Withstand Voltage: AC 2, 000V, at 0.5mA, 50/60Hz Insulation Isolation Grade: F Protection Grade: IP 57Power Supply by wire connection Unit weight: .1.6kgPacking: 12pcs per carton