Press the rear switch once to turn on the strong light, press it twice to turn on the working light, press it three times to enter flashing mode, and press it four times or hold for 2 seconds to turn off the power supply.
The rear side of the lamp is equipped with a TYPE-C charging port. During charging, simply insert the output plug of the charger into the charger socket. 
The charger has a built-in charging protection device. When the charger's input terminal is powered on and the charger is unloaded, the indicator light is red. When the charger's output plug is inserted into the lamp charging port, the indicator light changes to red, indicating normal charging has begun. After the battery is fully charged, the indicator light turns green again. 
After being fully charged once, it can be used at any time within 1 year; 
If it is not used for a long time, replenish for about 4 hours every half a year as a reference.