Peep into the true quality of ten LED bulbs that can replace 40W bulbs

LED indoor lighting is in the stage of continuous popularization. Among them, LED bulbs have become one of the most demanding alternative sources in the market due to their high replaceability and high consumer acceptance. In March 2014, there were institutional statistics showing global replacement. The price of 40W LED bulbs dropped slightly by about 1.3% to 14.9 US dollars, of which the price drop in China was the most obvious. The rapid decline in product prices has led to the replacement of LED bulbs. In early April, the Guangzhou Municipal Administration of Industry and Commerce conducted a sampling test on the quality of LED bulbs sold in the market circulation field, showing the failure rate of LED bulbs. Up to 50%. According to the reporter's understanding, the LED bulb sampling unqualified items are mainly concentrated in the rated voltage, rated frequency, use restrictions and other signs are not clear, the identification information is incomplete, easy to cause safety hazards in installation and use.

There are many brands in the LED bulb market, but how many brands are truly trustworthy?
The price of big brands in the LED bulb market has declined after the policy subsidy, but there is still a distance between the separation of the “people-friendly”. The price of LED bulbs of domestic brands is relatively low, but is it cost-effective? In order to solve these problems And in-depth understanding of the current quality of LED bulbs used in home lighting, the evaluation room from the various brands of Tmall flagship store and offline retail stores to buy 10 LED bulbs that can replace 40W bulbs for evaluation. Among them, Philips, Osram, GE, IKEA, Foshan Lighting and Op is the representative of the big brands. In addition, Benbang, Mingpu, Yuda and Ding Deng are the representatives of the domestic small brands that are popular in the network, among which the LED bulbs of Ding Deng can be carried out. Smart dimming, the Riddle 6.3W bulb that entered the IKEA stores this year is the only offline bulb in this sample. I hope to find out the current status of the LED bulb market for furniture lighting and the cost performance of the products by evaluating the 10 LED bulbs that can replace 40W bulbs.

Product appearance and parameters

Product appearance 1

Product appearance 2

The 10 models of the 10 manufacturers selected this time are 5-9W, which can be used to replace the LED bulb of 40W bulb. The temperature is 24~26°C, the relative humidity is 60~63%, and the standard atmospheric pressure is in the environment. Test, product parameters are shown in Table 1:

Table 1 Performance parameters of 10 LED bulbs

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