A. Switch instructions
1, the battery is positive inside (lamp), negative outside (tail).
2. The switch is in the tail, the switch function is the switch function, and the light dimming function is by pressing the switch.
2. Circuit board instructions
1. The flashlight in our shop adopts the advanced stabilized voltage and constant current technology, which can effectively solve the requirements of LED flashlight for stabilized voltage and constant current.
2. Special note: a. do not overvoltage, and the voltage should not exceed 4.2v; B. The battery is facing forward, do not put it in reverse, otherwise it will burn the board; C. Pay attention to control the change of torch temperature to ensure the heat dissipation; D. do not open the circuit board for non-professionals.
3. Warranty description: open or processed circuit boards are no longer covered by warranty.
3. Lithium battery instructions
1. Characteristics of lithium batteries: lithium batteries and mobile phone batteries are charged in different ways; Lithium battery has no memory, can be charged at any time, do not overcharge put;
2, the first charge for 6 hours at least, according to the green light of the charger later on it is ok, there is no need to charge;
3. Special prompt to use \"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 charged and discharged once more within three months;
Four. Instructions for using the flashlight
1. When using the flashlight, choose the voltage and battery according to the requirements of the flashlight. Do not misuse the flashlight to avoid burning the circuit board.
2. In use, when the brightness of the flashlight changes significantly, the flashlight should be closed to prevent overdischarge of the battery.
3, cooling skills: in the use of the torch, to ensure the heat dissipation. When the battery is fully charged, it is strongly required to use the second gear first so as to extend the life of the flashlight lamp holder and battery. Do not direct the flashlight light into the eyes of the person, super bright dazzling, so as not to affect vision, especially children.
Five. troubleshooting
1. Check the battery: make sure the battery is charged and loaded in the right direction. Do not use batteries of different brands.
2. Check the tail cover: make sure the switch is tightened and in good contact, make sure the copper column of the tail cover is in good contact with the metal sheet of the pressure ring of the tail cover, and pay attention to whether the lamp holder is loose.