Voltage : 220 / 230V 50 / 60HZCurrent : 13 / 14AWhen suitable high temperature use , at a temperature of 150 to 300 degreesSpecifications : 170 * 170 * 50mmModel ; MR77B3Material : metal aluminum heat fanInterface: two -pin socketLife: 50000-100000 hours Bearing : Dual BallFeatureMaintenance- double ball bearing , long life, With sufficient cooling air volume and pressure