Quick DetailsPower Source: lithium batteryType: air cooling fanInstallation:tableMaterial:ABS plasticCertification:ceModel Number:1880Place of Origin: CHINABattery: 18650 lithium batteryBattery Power: 2400 mAhFan Size: 6 inchFan Speed:low/middle/highLight Step:dim/strongLED Power: 5 pcs*0.5WPacking: color boxCharger: USB