1. DC motor
2. Wattage：10W
3. 20cm fan blade length
4. 4 speed settings
5. Time off：1/2/4/8hours
6. Manual head up and down
7. 3-levels of brightness adjustment
8. Battery capacity display
9. Reverse charging function
10. Desk / Hanging dual-use
11. Built-in battery 5850Mah
12. IPX4 Waterproof level
13. Product Size (WxDxH) mm：293(W) x 141(D) x 329(H) mm