Stepless Speed Control;165 Adjustable Angle,high-quality motor makes your fan quieter. Fan with LED,3 Brightness,Sufficient brightness to make your work and life convenient. The knob of the fan is stepless adjustable. The measured working current has a 10% error, the maximum gear current is 0.26mA, and the minimum gear current is 0.07mA. Fully working time of each capacity battery (minimum gear and maximum gear): 3AH:11.5-42 hours 4AH:15.5-57 hours 5AH:19-71 hours 6AH:23-84 hours Product Name:Cordless Working Fan Not included batteries Compatible with: D: Compatible with for 14.4V-18V -ion battery, BL1430, BL1450, BL1830, BL1850, BL1860, etc. Colour:Green Material:Aluminum + PC Package Contents: 1 * Work Fan 1 * port Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.