一．Matching of LED lights and power supply drive:
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If the LED lamp does not match its power supply driver, there will be unexpected problems, mainly including:
1. Affect the life of the lamp, or even burn out the LED lamp.
This is mainly due to the excessive lamp current provided by the power supply, which causes the LED chip to over-current, thereby shortening its life and even burning the chip.
2. Not working properly
For example, the LED lights flicker, the LED cannot reach the rated light output due to low current drive, and so on.
3. Harmonic increase
If the power supply does not match the LED lights, the harmonics will increase significantly. Harmonics can also cause a variety of other hazards: increased actual current, increased temperature rise in conductors and appliances, interference with communications, increased energy consumption, and more.
Therefore, the use of LED lights must be driven by a suitable power supply!
二. The importance of flicker-free power supply:
Since the lighting field entered the era of fluorescent lamps, lights accompanied by strobes have been flooding our light environment. Because of the problem of the principle of fluorescent lighting, this hidden danger has not been properly resolved. Even the LED lighting used today still has the problem of flickering lights.
So how serious is the stroboscopic hazard?
Sine wave modulated light, if the frequency is 3-70Hz, may induce epilepsy. If the frequency is 100-120Hz, it will induce headaches. If you work or study for a long time in a certain environment, you will feel dizziness, nausea and other symptoms, but when you step out of this environment and look far away, you will feel that everything becomes comfortable. The culprit that causes people's bad reactions is most likely the ambient light. But because the vast majority of people do not understand light, they may attribute these problems to other factors such as space, air, and mood.
We know that real healthy lighting products should be healthy and friendly no matter from the perspective of human body or environment.
Supplementary knowledge:
The flickering of LED lamps has basically nothing to do with the LED light source, and is mainly caused by the driving power. According to common sense, LED lights are powered by DC and should not flicker, but if the power supply is not done well during the power supply process, the low-frequency harmonics superimposed in the DC have fluctuations, and stroboscopic phenomenon will occur. "
All in all, there are two main factors that restrict flicker: the first is the level of flicker frequency, and the second is the amplitude of flicker modulation.
