1,Size:92*92*25mm 2,environmentally friendly 3,operating temp -10C to +70C 4,ball bearing;sleeve bearing DC Brushless FAN:1,Size: 92x92x25mm2,Voltage: 12V 24V 3, Current:0.16-0.22A / 0.09A -0.12A4,Power: 2.5w; 2.9w5,Speed:2500-3400RPM6,Bearing: Ball bearing / Sleeve bearing7.Leadwire:1007 24AWG UL8,Life expectancy-at room temperature: 50000(sleeve);80000(ball) DC BRUSHLESS FAN