Flashlight is a handheld electronic lighting tool.A typical flashlight has a light bulb and a reflex mirror that is powered by battery, and has a handlebar shell for hand -held.The current flashlight is much better than in the past. People have begun to use LED flashlights. So how do LED flashlights choose and repair?What are the precautions in use?Lets take a look with Xiaobian.
How to buy LED flashlights
Look at the battery first.The batteries that are now installed in LED strong light flashlights are divided into ordinary dry batteries and lithium batteries.Lithium batteries can be charged and repeatedly used, but their average life expectancy is only two years, and customers can buy according to their own needs.
At this stage, the LED strong light flashlight uses LED as a light source. At this time, when choosing a barrier, the aperture must be depends on the aperture.Two colors, and are not uniformly distributed.
Observe the brightness of the LED strong light flashlight, and select the flashlight with high brightness and slower litter attenuation.
How to repair LED flashlights
1. Determine the fault: unscrew the tail and expose the negative electrode of the battery. Use metal pieces such as scissors or tweezers to connect to the battery negative electrode and the strong light of the battery.If you can, it is the problem of strong light flashlight switch. If you are not lit, please check whether the tin welding at the circuit warehouse and the circuit board connection is open or virtual welding. If you have any, please re -weld to solve the problem.
2. Check the battery: Make sure the battery has electricity and load the battery in the correct direction. The battery of different models cannot be used.
3. Check the tail cover switch: Undurn off the tail of the LED flashlight, you can see that there is a switching ring with two concave dots with two concave dots in the outer ring of the switch spring.Check whether there is a loose switching ring to ensure that the switching ring is pressed on the switch, and there must be no loose situation.
4. Before you are maintained, please make sure that the explosion -proof flashlight is tightened at each thread. If the threads have not tightened, it may cause a reason why it is not bright or slightly bright.
Precautions for LED flashlights
1. Do not directly illuminate the eyes of the flashlight, super bright, so as not to affect vision, especially children.
2. When turning on the flashlight, the force must be light and uniform to maintain the elasticity of the lifting.
3. When using a flashlight, check the screws at each thread to tighten without looseness.
4. Do not disassemble the lamp head to avoid damage to the lamp head component and lens.

Related tags： Houseware