It is the key to choose light and eye protection during the summer and summer vacation

In order to make children grow healthy, parents always choose the "school name" for "reading and writing desk lamps". However, the reporter yesterday from the Changzhou quality inspection institute learned that the current market on the mainstream eye lighting products of only 8% of the province, unqualified eye lights not only can not protect eyesight, but will also hurt the eye.

Many brands, low price products account for the big head

Reporters in Changzhou, the gold bridge market, the Luqiao market, and a number of large stores have found that there are hundreds of brands sold in the Changzhou market, ranging from more than 30 to more than 300 yuan. Among them, 30 yuan -70 yuan of eye lights occupy about 8 of the market. The eye lamp has both the light source and the specification of the light source in the manual.

Compared with the low price lamp and the high price lamp, it seems only from the appearance that only the material is good and bad, the difference between the workmanship and the rough.

LED light is not yet suitable for eye lighting

In recent years, LED lamp, as a new lighting source, has gradually entered the home of ordinary people, and is highly praised for its advantages of energy saving and high efficiency. At present, there are many LED light protecting lamps on the market. But Shi Zhaoyang, the deputy director of the city quality inspection institute, believes that at least at present technical standards, LED lights are not suitable for eye lights. This is because LED is a point source, and it is very easy to produce glare after the lamp is used. Although there are many anti glare LED lights at the moment, the lighting efficiency is greatly reduced.

In contrast, high frequency fluorescent lamp, incandescent lamp and energy saving lamp have advantages and disadvantages. The high frequency fluorescent lamp has little strobe, but the price is slightly higher, and it has the possibility of low frequency and high frequency; the incandescent lamp has good optical performance, but the efficiency is low and not energy saving; the light source in the energy-saving lamp is more suitable for the eye lamp, but the brightness of the white light is more than the brightness of the white light source. Lower. However, these three lamps are all ideal light source for eye protection.

Buy with skill and use

How can I buy a qualified eye light? The reporter learned from the inspection agency and the sales staff that the method of selection and use should be sought.

In addition to the regular store to choose 3C certified products, consumers should pay attention to: the best choice with the reflector, lower light products, eyes in the distance from the desktop 40 centimeters high, from the light level distance of 60 centimeters, should not see the light source. The lamp pole of the desk lamp is as long as possible and can be adjusted. The length of the wire is not less than 1.8 meters.

When you use it, read and write for more than 40 minutes to let your eyes rest. If there is a clear dark area in the line of sight, it is best to open the ceiling light at the same time in the room with the eye lamp.

For more information on LED, click on the Chinese LED network or pay attention to the WeChat public account (cnledw2013).