1. Instructions for Use of the switch
1, the battery is the positive pole facing inside (the side of the lamp holder), and the negative pole facing outside (the tail).
2, the switch is at the tail, the switch function bearing switch is the switch function, and the light pressing switch is the dimming function.
II. Circuit board instructions
1 torch adopts advanced constant voltage and constant current technology, which can effectively solve the problem LED torch requirements for constant voltage and constant current.
2. Special tips: a. Do not use it under excessive pressure, and do not exceed the voltage.4.2V B. The battery is facing forward, do not set it in reverse, otherwise it will burn the board c. Pay attention to controlling the change of flashlight temperature to ensure heat dissipation d. Do not open the circuit board for non-professionals.
3. Warranty description: the warranty scope is no longer covered after the circuit board is opened or processed.
III. Lithium battery instructions
1 features of lithium battery: the charging method of lithium battery is completely different from that of mobile phone battery; Lithium battery has no memory and can be charged at any time. Do not overcharge or overdischarge.
2, special tips: use anti-overcharge, anti-reverse connection, and anti-short circuit" three defense" charger;
3. If you do not use the battery for a long time, you should fully store the battery and charge it once again in about three months normally;

IV. Instructions for Use of flashlight
1 torch choose according to the requirements of the flashlight on voltage and battery. Do not use it indiscriminately to prevent the circuit board from being burnt out. Do not use batteries of different models and voltages at the same time.
2. In use, when the brightness of the flashlight changes significantly, turn off torch to prevent battery overdischarge.
3, heat dissipation skills: during the use of the flashlight, ensure heat dissipation. It is strongly required that when the battery is fully charged, it is better to use the second gear first, so that the lamp holder and battery of the flashlight can prolong the service life of the product! Torch cannot be directed directly into people's eyes, which is super bright and dazzling, so as not to affect eyesight, especially children.
V. Troubleshooting
1. Check the battery: make sure that the battery has electricity and is installed in the correct direction. Batteries of different brands cannot be used. New and old batteries cannot be mixed.
2. Check tail hood: make sure that the switch is tightened and in good contact, ensure that the tail Hood copper cylinder is in good contact with the tail Hood pressure ring metal sheet, and pay attention to whether the lamp holder is loose.