LED lighting industry in China has made great progress

After more than ten years of development, LED lighting industry in China has made great progress.However, we should also note that there are a lot of enterprises getting in the pursuit of photosynthetic efficiency of myth. Admittedly, improving photosynthetic efficiency can make the high brightness, but we want to know, lighting products relying on nothing more than a luminous efficacy index is not enough,only fully meet the light, color, electricity, energy efficiency and safety requirements is the true sense of the lighting efficiency, so we should be more emphasis on the overall quality of LED lighting products 20W led garden lights.


Investigate its fundamental,because the chip price is too high, high power chip is as high as a few dollars,so to save cost,and as little as possible with chip,it is helpful to increase current way for improvement of the chip power. But, according to data at high current density, lamps and lanterns of low power supply voltage, current, power cost is high, the ac-dc power conversion efficiency is low, at the same time chip high working voltage, high temperature, lower efficiency and reliability also becomes poor, low phosphor light conversion efficiency.So use this solution to produce LED lamps and lanterns and the power cost is high,and the heat dissipation component cost is also high. At the same time, it also caused the current LED lighting products in use is often droop too quickly.


Now high power chip prices has been reduced to a few cents,small power chip prices is only a few cents, companies have completely no need to follow the old way. If work at small current density,lamps and lanterns can low-cost power supply using high voltage, low current, the ac/dc conversion efficiency is high, the chip also has a high luminous efficiency, smaller chip at the same time operating voltage, and temperature become low, high efficiency, good reliability, high phosphor light conversion efficiency. So use this solution to produce LED lamps and lanterns, the power cost is lower,and heat dissipation component cost will become low.