1. The battery is positive inward (the light head side) and negative outward (the rear).
2. The switch is at the end. Pressing the switch is the switch function.
2. Circuit board instructions
1. The flashlight of our store adopts advanced constant voltage current technology, which can effectively solve the requirement of LED flashlight on constant voltage current.
2. Special note: a. please do not use the overpressure, and the voltage should not exceed 4.2v b. do not turn the battery forward, or it will burn the board
3. Warranty description: open or treated the circuit board is no longer under warranty.
3. Instructions for lithium battery
1. Most flashlight batteries mainly use 18650 and 16340 lithium batteries.
2. Features of lithium battery: the charging mode of lithium battery is totally different from that of mobile phone battery; Lithium batteries have no memory and can be charged at any time.
3. The charging time is less than 6 hours, and the green light of the charger will be ok in the future. You don't overdo it.
4. The natural discharge rate of lithium battery will release about 1% or less of its charge per day when it is not in use. Although it is slow, it can not be left too long.
5. Pay attention to the battery's waterproof, anti-period and anti-fall, etc.
6. Special tips: use the \"three-proofing\" charger with anti-overcharge, anti-reverse connection and anti-short circuit;
7. If the battery is not used for a long time, the battery shall be fully charged and saved, and the battery shall be charged and discharged again normally within three months or so;
8. Warranty description: no longer warranty scope after leaving the factory.
Four. Instructions for use of the flashlight
1. When using the flashlight, select the voltage and battery according to the requirements of the torch. Do not use the battery indiscriminately to avoid burning the circuit board.
2. In use, turn off the flashlight when the brightness of the flashlight changes significantly, so as to prevent the battery from overshooting.
3. Heat dissipation skills: during the operation of the torch, ensure heat dissipation. When the battery is required to be fully charged, use the second gear first, so that the lamp holder and battery can be extended to extend the product life! Holding the torch with your hand is a good way to dissipate heat. It is suggested that when the flashlight is put on, it should be cooled or turned off in time according to the heat condition of the flashlight, and then lit up after the temperature falls, so as to dissipate heat.
4. Strengthen the protection against the instructions of the flashlight on water resistance and shock resistance.
5. Keep the inner wall of the lamp cup clean and do not wipe it with hands or hard objects; Clear the fingerprint on lens, use cotton swab to wipe lens cleaner gently.
6. Do not direct the flashlight light into your eyes, so as not to affect your eyesight, especially children.
7. If the flashlight is not used for a long time, remove the battery (for a month or longer) to avoid chemical corrosion.
Five. Protect the instructions
1. Do not make long-term contact with sunlight, water, chemicals and corrosive gases to avoid damaging the protective layer of the torch.
2. In order to keep the \"0\" ring and thread free, wipe the vaseline oil on the surface of the ring 2-3 times per year.
Six. troubleshooting
1. Check the battery: make sure the battery is energized and installed in the right direction. The batteries of different brands are not allowed.
2. Check the tail cover: make sure that the switch is tightened and the contact is good, and that the copper column of the tail cover is in good contact with the metal piece of the tail cover.
3. Pay attention to whether the lamp holder is loose.

A few common mistake area that torch chooses
Myth 1: the brighter the better

The torch to enhance the brightness method one is from the lamp head to reflective bowl, battery, main pull design and other heddles lift. Both international and domestic products are strictly designed and tested to ensure service life and safety.
The second method is to increase the voltage and current to achieve: overfrequency brings the rear foot fever is huge, because the two do not match, causes the frequent burning lamp holder and the lithium battery to discharge frequently, can light only for a few minutes and often needs to repair.
Mistake 2: being misled by false parameters
Many sellers intentionally or unintentionally false standard lumen value
Mistake 3: orange peel glance bowl is not necessarily better than smooth face
The orange peel reflectors are less efficient than the shiny ones, and you can see that the high power search lights on the market are almost always the glossy ones, because the reflectors are efficient and have a long range. So why do most tactical flashlights use orange peel reflective bowls? The reason is simple, to get a perfect spot. Because the bulbs we usually use have filament, and the light spot that reflects from the reflecting bowl happens to be the projection of the filament, which is similar to the phase formation principle of the convex lens. Such spot is a clear filament, very ugly. Let's look at the parameters and see the actual effect!
The flashlight sold by our store is truly marked with brightness, long battery life, pure and white light color, and good focusing effect! Is the work, field sports and other auxiliary tools!
Advantages: compact size, light weight, easy to carry, sturdy and durable, with all-weather use function, strong light, direct distance, strong and weak light can be selected, strong light - far, weak light - close, emergency - flash. The top titanium oxide alloy is reinforced with a one-shot design that replaces the safety hammer in an emergency to smash the window for escape.

• Q: do I need to recharge first?
  Answer: please use it first. When the flashlight is dark, it can be recharged for another 4 hours. Lithium battery is afraid of over discharge.
  Q: what if the light bulb breaks?
  A: in case the lamp is broken, you can contact us and exchange it.
  Q: what is lithium battery over discharge?
  Answer: brightness obviously abate still continue to use, the battery that cause damages, although pass professional activation press to do, electric quantity also can reduce apparently, so pay attention to the maintenance of battery at ordinary times, much charge.
  Precautions for the use of strong light flashlight
  Lamp holder does not often disassemble, lest cause glance cup or bulb to injure.
  Matters needing attention for bright light torch maintenance
  When you use the torch for daily routine maintenance so that it can continue to provide you with quality service
  1. Wipe the flashlight with a clean soft cloth after each use.
  2. When the flashlight is contaminated with sea water or corrosive liquid, please clean it with clean water and dry it with a hairdryer.
  3. Please apply a small amount of silicone to the joint when the lamp head and tail cover are not working smoothly.
  4. When the flashlight is not in use, please remove the battery and keep it in a cool place.