Led lights under cold environment more should pay attention to quality1

Our led street light technology development very fast, but there are still a lot of users to use the led street light there is a very big mistake, this kind of consumers generally think that the led street lamp if for use in a cold place, more conducive to heat dissipation, also not easy to cause a variety of accident or fault happens.

but the actual situation? Actual situation is definitely not like that, actually led street lamp if applied in cold environment, it needs to have more strict technical requirements, because of the cold local temperature difference is very big, the temperature is lower, let the led street lamp under low temperature environment to work for a long time, and often suffered from sudden cold and hot shock, will certainly cause more serious damage to the inside of the parts, also need to manufacturers to grasp the quality of parts is more strict. After

if outdoor led street lamp chip encapsulation is a solid solid device, inside there is a metal stents, chips, as well as silica gel and lead expansion coefficient between certain mismatch happens, coupled with the temperature difference between the cold places change is very big, big impact on the parts will be hot and cold impact, causing the silicone when temperature changes, furniture contraction and expansion, leads to device between internal stress become larger, it will also lead to the led street lamp wire bonding point in larger displacement, to lead the occurrence of premature damage or fatigue.

and can also lead to the original bonding state is not very good desoldering solder joints, prompted a desoldering chip electrode and solder ball, serious, can also lead to the led street lamp chip layered peeling.

a led lights inside the led device used by almost all reached hundreds of stars, most of them are taken in series in the form of a work, assuming that there was a problem in an led, led also can lead to a lot of together with aging, so if you want to use in cold places led street lamp will be more careful of its quality.