The compact and light Wuben A21 LED flashlight delivers a luminous flux of up to 4200 lumens (ANSI) and a afterglow of up to 222 meters. The Wuben A21 flashlight is equipped with a CREE XHP70 LED chip. The flashlight is made of aluminum alloy 6061. The dimensions of the flashlight are 135 x 42mm and the weight is 147g. The flashlight is powered by one high-capacity Li-ion 21700 battery, which can be charged directly from the USB-C port.
The Wuben A21 flashlight is equipped with 6 modes (4200lm, 1200lm, 400lm, 130lm and 5lm) with an operating time in individual modes of 2-4 hours, 5 hours, 8 hours, 20 hours and 110 hours. There are also stroboscopic flashes for crisis situations. The flashlight is powered by a digitally regulated constant current to guarantee constant light output even when the voltage in the batteries is reduced (while they are slowly discharging).