Equipment skills: how to maintain outdoor flashlight

1. Do not irradiate the light directly to the eyes to avoid injury to the eyes.
2. Do not use the battery under overvoltage. The positive pole of the battery is facing forward and not reversed, otherwise the circuit board will be burned. Pay attention to control the change of flashlight temperature. Non professionals are not allowed to open the circuit board.
3. When charging, please identify the positive and negative poles of the appliance, and do not overcharge or discharge, so as not to damage the service life of the battery (the charging time is generally 3-5 hours).
4. When using the flashlight, check whether the threads are tightened loosely. If the threads are not tightened, it may cause no light or slight light.
5. The flashlight should not be placed in the sun or high temperature environment. After the flashlight is out of use, please take out the battery and store it in a cool and dry place.
6. Wipe the screw teeth with a clean soft cloth every 6 months and apply a thin layer of lubricant.
Note: do not use petroleum based lubricating oil on the waterproof O-ring, otherwise the O-ring will be damaged.