Maintenance of the flashlight:
①. When the flashlight is in use, select it according to the requirements of the flashlight on the voltage and battery. Do not use it indiscriminately to prevent the circuit board from being burned. Do not use batteries of different types and voltages at the same time.

②. Cooling skills: During the use of the torch, it is necessary to ensure heat dissipation. It is recommended to dissipate heat in time or turn it off according to the heat of the flashlight when it is placed on and off, and then turn it on after the temperature drops to facilitate heat dissipation.
③. Pay attention to the waterproof, moisture-proof and drop-proof of the battery. Special reminder to use the "three-proof" charger with anti-overcharge, anti-reverse connection and anti-short circuit.
④. If the battery is not used for a long time, the battery should be fully charged and stored, and it should be charged and discharged once in about three months.
⑤. Do not keep the flashlight in contact with sunlight, water, chemicals and corrosive gases for a long time to avoid damaging the protective layer of the flashlight.
⑥. Keep the inner wall of the lamp cup clean and never wipe it with your hands or hard objects; to remove the fingerprints on the lens, you can use a cotton swab and lens cleaner to gently wipe it.
⑦. In order to keep the "O" ring and the thread rotating smoothly, wipe Vaseline oil on its surface 2-3 times a year.