Please long press the tail switch to turn on the flashlight.

Please charge the included battery directly, there is a USB-C charging port of the battery. And you can put the battery into a charger to charge it too.

Because this indicator is to show that the flashlight is working normally, if the indicator doesn't show green, it indicates the flashlight is wrong.

Please check if the front side switch is in a locked state, in general, the front side switch will be locked after you turn off the flashlight for 1min. If you want to unlock the front side switch, please click it three times in quick succession, then it will work normally again. Or you can press down the tail switch to turn on the flashlight, the front side switch will be unlocked automatically after 5s.

Two versions. One is with red/green/white LEDs, another one is the IR version with white/IR850/IR940 LEDs.