LED street lights need to pay more attention to quality in cold environments

Although the technological level of led street lights in our country is developing very fast, there are still a lot of users who have a very big misunderstanding about using led street lights. This type of consumer generally feels that if led street lights are used in cold places. If it is, it is more conducive to heat dissipation, and it is not easy to cause various accidents or malfunctions. But is the actual situation like this? The actual situation is definitely not like this. In fact, if led street lights are used in a cold environment, they need to have more stringent technical requirements, because the temperature difference in cold places is very large and the temperature is relatively low. Long-term operation of led street lights in a low temperature environment and frequent sudden changes in cold and heat will definitely cause more serious damage to the parts inside, and manufacturers need to be more strict with the quality of the parts. If the outdoor LED solar street light chip is packaged as a solid solid device, there will be a certain mismatch between the metal bracket, the chip, and the expansion coefficient between the silicone and the lead, and the temperature difference between cold places is very different. Large, it will have a large impact on the components, which will cause the silicone to shrink and expand when the temperature changes, causing the stress between the devices to become greater, which will also cause the LED solar street light wire bonding point to be larger. The displacement caused the lead to be damaged or fatigued prematurely.　　It will also cause the solder joints in the original bonding state to be unsatisfactory to be unsoldered, causing the chip electrical level and the solder balls to be unsoldered, and in serious cases, it will also cause the LED solar street light chip to delamination and fall off. Almost hundreds of LED devices used in a LED street light, most of them are connected in series to work, if one LED has a problem, it will cause a lot of LEDs to also follow the aging, so if you want to If you want to use led street lights in cold places, you must be more careful about its quality.
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