Dongguan Metalwork Technology Co., LTD. , https://www.dgdiecastpro.com
Salesperson: "There is no test report for cheap lamps. The brightness is not up to a certain level. A few squares can't reach it. Those are all small workshops."
Is it really like the salesperson said that the cheap bulb is in the imaginary bulb wattage? The reporter decided to buy a 4 yuan LED bulb in the market and go to the relevant testing organization for testing.
For the reporter's repeated inquiries, the salesperson bitten that the LED bulb he sold was three watts. The reporter saw that the outer packaging of the luminaire was also marked with three watts. The reporter then came to the Shandong Chaolang Huaguang Lighting R&D Center. Researcher Tang Wenzhao will use the integrating sphere to test the data of this LED bulb.
Tang Wenzhao, a researcher at Shandong Inspur Huaguang Lighting R&D Center: “The first test on the instrument, first on the instrument panel, can already see the power of this lamp. Our first lamp itself is a three-watt LED lamp. After the instrument is tested, the power is only 1.6 watts. From this, it can be seen that his luminaire is not up to the standard power factor, and it does not meet the requirements of an industry standard of 0.5, and the product is not up to standard." The researcher also said that the relevant product regulations are for the industry. The power error is between plus or minus ten percent. When you mark three watts, the actual lamp should be between 2.7 watts and 3.3 watts.
Manufacturer: Insufficient tile is the unspoken rule of the industry
After testing, the reporter bought the 4 yuan LED bulb in the Jinan lighting market, the actual wattage is actually half of the identification wattage, that is, three watts become a little five watts.
The reporter saw on the outer packaging of this LED lamp that the lamp did not have a certificate of conformity and a certificate of 3C certification. It only stated the name of the factory and the company name of Shenzhen Meijiashun Electric Co., Ltd. The reporter called the phone according to the phone marked on the above package. .
Shenzhen Meijiashun Electric Co., Ltd.: "The cheaper are less than wattage, we produce less than wattage, you are not enough to think so cheap."
The staff of Shenzhen Meijiashun Electric Co., Ltd. said that dealers generally know that they produce less than wattage of LED bulbs. In order to earn the difference, dealers prefer to enter products that are generally less than wattage.
During the conversation, the staff member also revealed the secrets of the lighting industry.
Reporter: "Is it a hidden rule?"
Shenzhen Meijiashun Electric Co., Ltd.: "Yeah, the one you buy cheap is a full wattage. You can buy one and come back with less than wattage. Our home is a small workshop. If you want to be good, you buy a brand. If you are upscale, don't buy it so cheap."
Investigation: The merchant sells two lamps, one foot tile and one small tile?
When the reporter returned to the market when the lamps were returned, a sales person who also sold the LED bulbs of Shenzhen Meijiashun Electric Co., Ltd. told reporters that her family had enough LED bulbs.
The salesperson said that the average manufacturer will produce two kinds of LED lamps with the same appearance, one of which is produced as a full-watt bulb, and the price is slightly higher. A light bulb designed to be less than watts is relatively inexpensive. She also sympathized with the reporter to buy a four-yuan light bulb that is less than watts, and his family's full-watt bulb is five yuan.
Salesperson: "This is five."
The reporter saw that the reporter bought the 4 yuan purchased by Shenzhen Meijiashun Electric Co., Ltd., the 3 watt LED bulb is packaged in a green box, and the help of the flower to buy 5 yuan, by Shenzhen Meijiashun Electric Co., Ltd. The bulbs that produce LEDs are packaged in blue. The price is only one yuan difference, but the packaging is different. Is it really distinguishing the wattage? Is it as the manufacturer says that cheaper bulbs have less wattage? The reporter also came to other lighting stores to understand the situation.
The reporter learned that the sales staff of other homes did not recognize the phenomenon that the LED bulbs were insufficient. At the same time, some sales personnel also assured reporters that the LED bulbs they sold were not only problematic, and the energy-saving lamps that had been sold for many years would not have problems.
(This article is reproduced on the Internet. The texts and opinions expressed in this article have not been confirmed by this site, nor do they represent the position of Gaogong LED. Readers need to verify the relevant content by themselves.) 
LED lights in the "mysterious machine" virtual standard wattage into the industry's unspoken rules
According to the survey, the price difference in the LED lamp market in Jinan is large, the cheapest is 4 yuan, and the high is more than 100. In addition to the difference between brand and workmanship, there is also the power of the lamp. In the investigation, a salesperson revealed to reporters that the wattage of cheap lights is not enough.