1. LED color aberration problem
In the application of a single LED, there is basically no color aberration problem, but if many LEDs are put into use at the same time or a lamp has multiple LEDs at the same time, the color aberration problem will be prominent. Let's talk about a set of lamps first, if you can see at a glance that the colors of the lights are not uniform, I think you should give a discount if you are happy. Although like LUXEON divides LEDs into eight military regions according to color temperature, and then divides them into several sub-regions on the right in each military region, controlling a wide range of color aberrations to a certain extent, there are still differences in the same color area and the same batch of LEDs, and this difference still cannot escape the provocation of the naked eye.
2. LED insulation problems
I dare not say that we were the first to discover the insulation problem of LEDs, but at least the big-name manufacturers were surprised by our doubts. So far, the fundamental problem has not been solved, and only remedies have been taken, such as using aluminum substrates to treat insulation (the original aluminum substrate was not insulated, but now almost all of them have been done) may be incomprehensible. A single LED is not insulated, which has little impact, and there is a problem when multiple LEDs are connected in series
3. LED anti-pulse problem
This problem is still controversial with the manufacturer, but it does exist in my practical application, mainly reflecting on the cold pulse, that is, the moment of power-on, a few LEDs break down or disconnect at the moment of power-on in the cold state. I don't think it's due to static electricity or high voltage (the start-up voltage is in range).
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