The LED flashlight is a new type of flashlight with LED (Light Emitting Diode) as the light source. Because LED has high brightness, low power consumption, long life and small size, it is an ideal choice for portable lighting.
Advantages of LED flashlights:
1, LED long life, generally can reach 50,000 hours or more than the traditional tungsten filament lamp life is 5 to 10 times higher.
2, cold light, low heat, will not damage the lamp holder with high safety.
3. Fast reaction speed, impact resistance, small size, easy size and light weight.
4, energy saving, energy saving, new environmentally friendly light bulbs.
5, the reaction speed is as fast as 1us (microseconds), no need for warm lights can improve safety.
6, low-voltage drive safety.
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LED flashlight
8 precautions for purchasing LED flashlights
1, the number of heads, the number of heads should be moderate. Generally, the household should not exceed 12 heads. The battery used is 2 to 3 knots. It is a little bit bigger. For other special needs, you can determine it according to your needs. Of course, high-power LED flashlights generally cannot reach the number of 12.
2, welding, welding must be strong. Each diode is connected to the circuit board by soldering. If there is a bad solder joint, it may cause the beads to be off or affect the overall use.
3, the battery, there are two kinds of ordinary batteries and lithium batteries, although lithium batteries are rechargeable batteries, but the life is low, about 2 years, LED life is about 10 years, can be selected according to the actual situation
4, brightness, good LED flashlight brightness, slow decay.
5, the light bulb, the light bulb is extinguished, it is difficult for the naked eye to distinguish its good and bad, you can see the consistency of the light bulb in the case of lighting.
6, waterproof, good LED flashlight with waterproof function, good seismic performance, that is, resistant to falling. Because it belongs to electronic products, there is a circuit board at the front of the flashlight. Once it enters the water, it is easy to short-circuit and cause damage.
7, aperture, a good LED flashlight aperture is a uniform circle, the difference LED flashlight spot is divided into yellow and blue uneven distribution. The electro-beads are concentrated as much as possible. This kind of flashlight can not adjust the focal length like ordinary flashlight. When buying, be careful not to have astigmatism.
8, the appearance, you can choose aluminum alloy shell, beautiful and generous.
[Editor: Fliuzhou]
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