3.15 strikes, Nanjing sold nearly LED of the 50% samples of the sample power is not up to standard

Today, LED lamps can be seen everywhere, has become the main home lighting supplies. However, LED bulb production process is simple, low barriers to entry, the product mix on the market. Yesterday, the Nanjing Association for the local market sales of LED ball carried out the comparison experiment, the results showed that: 42 batches of bulb of LED bulb lamp, all batches of identification are not met, nearly 50% samples of power index is not qualified, over 60% samples of color index standards. This reporter has learned that, when the color rendering index is lower than 80 (or color temperature is higher than 4000K), high-energy blue light can harm the human eye health, causing irreversible permanent damage.

experimental result

Over 60% color rendering index is not long-term use of blue light hazards

Power, luminous efficiency and color rendering index are three key factors that affect the performance and quality of LED bulb. The time of the experiment a total of 42 batches of samples, all samples were marked on the product itself power, but for light marked batches of only 20 batches, on display index marked 17 batches, 6 batches of the annotation display index below the detection standards. As a result, all the samples are subject to incomplete labeling problems.

It is understood that the LED bulb lamp is mainly used to replace the incandescent lamp for indoor lighting, the standard requirements of the LED bulb lamp to be marked instead of incandescent lamp power, easy for consumers to choose. But in this comparative experiment, there are only 25 batches of the mark, the mark rate of less than 60%.

Color rendering is an important indicator of the quality of lighting, in the lighting product standards, the color rendering index for indoor lighting should be more than 80. LED ball bubble lamp because of its light-emitting principle is the blue chip to stimulate the yellow fluorescent powder mixed light, which contains a large number of blue light components, the lack of red, resulting in high color temperature, poor display. The researchers said that at present on the market a large number of LED bulb color rendering index was 70, up to less than the mark of 80. In this comparative experiment, there are 15 batches in line with the requirements of the standard, the 27 batch of less than the standard requirements, the failure rate of over 60%.

The comparison results showed that 42 batches of LED bulb, power indicators meet the requirements of the 23 batch, 54.8% pass rate; light efficiency indicators meet the standard requirements of 40 batches, the qualified rate was 95.2%; the color tolerance index to meet the requirements of 32 batches, the qualified rate of 76.2%.

Consumption suggestion

See when the product color temperature is not higher than 4000K

Experts pointed out that the main purpose of the LED bulb lamp is to replace incandescent lamps, so the relevant national standards for the number of LED lumens instead of incandescent lamps have the corresponding requirements. Consumers in the purchase of LED bulb lamp, we must look at the product packaging or instructions to replace the number of incandescent lamps, but also to see if there is a clear number of lumens.

Reporters learned that, in contrast to the experiment, some products are not marked lumen number, the number of Watts by virtual parameters instead of the number, so as to achieve the purpose of marketing. For example, Zhao photoelectric marked 7W, the measured 4.7W, to replace the 240 watt incandescent lamp; Socor marked 12W, the measured 5.3W, to replace the 100 watt incandescent lamp. These products are common to the point of light efficiency, attempts to confuse consumers. The choice of consumers, to see whether the luminous flux of incandescent lamp logo instead of the corresponding wattage, generally according to the corresponding 10 lumens brightness 1 watt to 100 watt incandescent lamp to calculate, for example, LED ball bulb the same brightness of 1000 lumens.

LED lighting products as the fourth generation light source has been recognized by the community, but in product selection, we must pay attention to the choice of the corresponding parameters according to their own use. According to the standard, the LED home lighting occasions when the temperature is not greater than 4000K; higher than 4000K, high-energy blue light on the human eye injury, once the irreversible macular lesion formation will cause permanent damage.

"In the market, due to the high temperature LED light source of high light efficiency, high temperature and strong stimulation to the eye, causing high brightness illusion, with high color temperature and product cost is relatively low, so the market in high temperature more products. "Experts said, in the choice of color temperature at this stage is not greater than 4000K are proposed, such as lighting lamps, bedside lamp to avoid using LED bulb lamp, so as to avoid the harm of high-energy blue light.

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