Experts reveal the culprit of "lower light efficiency" of LED bulbs

According to the latest findings of researchers at Rensselaer Polytechnic Institute, the real cause of the LED bulb “LED droop” phenomenon has long been revealed.

The discovery is expected to lead the LED lighting industry to break through major bottlenecks.

"Light efficiency decline phenomenon" refers to the fact that when the chip inputs a large amount of power, the luminous efficiency of the LED will decrease by nearly 20%. This phenomenon was first reported in 1999 and has been an important obstacle to the development of the LED lighting industry.

The report said that in a newly published paper, the school’s researchers confirmed that a phenomenon known as “electronic leakage” was the culprit that led to the decline in the efficacy of LED bulbs.

The researchers said that this discovery provided the first comprehensive model to explore the "decrease in light efficiency," and will guide new technologies to solve this problem in the future.

For a long time, researchers and LED manufacturers have been working to reduce the loss caused by LED "light efficiency decline", but did not really lead to the real reasons behind this phenomenon.