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Discuss why the LED lamp bead will be yellow

by:Tranch      2020-04-21

what is generally cause LED diode appear yellow? Below small make up for it.

LED diode yellow phosphor powder in the LED lamp bead is the cause of poisoning, because of the phosphor powder sulfur or sulfur after invasion, thus appear poisoning phenomenon, its main performance for black metamorphism, lose powder, fluorspar pool make LED lights turn yellow. The cause of this happening, it is in the assembly process of solder paste, when it is possible that the spot welding to get; Of course may also be related to the quality of the LED lamp bead, if lamp bead tightness is not good, will lead to the outside world sulfur.

to sum up, for the LED lamp bead appear yellow reason, are you clear?


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