Speed control gear: stepless speed control, power display, gear display
Input voltage/current: power supply voltage 110V-240V to 12V/12V-2A
Output power: 18W
Battery model/capacity: 21700/3.7V 15000 mA
LED power: 1W-3W
Usage time: 4.5-15H
Size: width35*thick26*height42CM