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Recently, the fifth round of LED bulb test results of China's CLEAR inspection program sponsored by Gaogong LED was released. The reporter found that there is no standard for the life expectancy of LED lamps that are most concerned and sensitive to mass consumers.
The test report shows that there are 40 models of LED bulbs detected in this round, from 32 different famous brand manufacturers (including some e-commerce brand products). Among them, 9 of the 40 sampling models did not indicate the length of life on the outer box, while the life of the marked lamps was the largest among 30,000-50,000 hours, but there were also 3W LEDs of brands such as Yiguang, Long and Bright. The lamp life parameter standard is in the smaller range of 20,000 to 25,000 hours.
In addition to the more common 50,000 hours of lamp life, the reporter was stunned by the fact that there are more than one brand of lamp life parameters marked more than 10 years. Even the life of the lamps in 15 and 20 years has appeared in the most conspicuous position.
Such a long service life certainly attracts attention, but on the basis of the prior art and the process technology, whether it can really achieve the long service life of the lamp, which not only puts a question mark in the industry, but also makes the consumer psychologically doubt the quality of the lamp. .
"Under normal circumstances, the average 3W bulb life is about 25,000 hours, big brands will strictly label this parameter." Shang Yi lighting area manager Qiu Lei told reporters that LED lamp life standard is based on 30% of light decay When the lamp is damaged, that is to say, when the light decay reaches 70% of the initial state, the lamp will be broken.
“But it also creates the chance to hit the ball for most small brands. Some manufacturers have 30,000 or more 50,000 hours of water, which is too much exaggeration.â€
In addition, some parameters are marked in "years", and Qiu Lei also said that the life of lamps is calculated differently. Manufacturers that are measured in years may consider that it is impossible for consumers to reach 24 hours of normal use per day. “The standard for calculating the life of a luminaire is even greater, and the time it can be marked is longer, because the calculation is different, 10 and 15 years are possible.â€
Different labeling methods also reflect the sales strategies of different manufacturers. "But for the consumer, he can't see the flaws in it, and he will think that the lamp with longer life will be better. For the dealer, he also has Sufficient basis to persuade consumers to recognize the product's life standard is not a virtual standard, false standard, in fact, this is a marketing tool." Qiu Lei said.
2013 fifth round CLEAR plan LED bulb lamp mission life test results publicity 
(Note: blue is the online shopping product, yellow is the product without label, self-defined number) 
The length of life of LED bulbs is marked as the manufacturer's invisible marketing means
[Text / high-tech LED reporter Zhou Jin] 10,000 hours, 20,000 hours, 25,000 hours, 30,000 hours, 50,000 hours, 15 years, 20 years ..., various life signs are varied, the longer the life expectancy.