Today’s children face the pressure of heavy school work, parents want their children to learn, but also worried that they are young to suffer from myopia. Therefore, the purchase of an eye lamp has become the wish of parents. Children with lights, it is best to use two light sources, the room ceiling lamp to bright, the best choice of traditional incandescent lamps, close to the sun’s mixed colors, brightness to about 45 watts is the best, so that the best effect on eye comfort. In addition, add another desk lamp light source on the desk. The placement of the lamp is also delicate, in general, the right-handed pen, the lamp is placed on the left side, the light should not be directly on the eyes, to be lower than the line of sight, shining on the book, which eliminates the light shadow, to ensure uniformity of light, but also to improve eye comfort. At present, China has not introduced national standards for eye protection lamps, but according to the national standard “Read and Write Work Desk Lamp Performance Requirements”, CIE international standard “Indoor Workplace Lighting Guide S800-2001”, etc., in order to achieve the effect of eye protection, at least six requirements: to have uniform light distribution, to remove direct glare, no strobe (the strobe frequency of the desk lamp should be higher than 25000rpm), and High color rendering and appropriate color temperature (color rendering should be greater than 80%, the color temperature of the lamp 3300K ~ 5300K is more appropriate), the lampshade of the lamp preferably with UV filter film, reduce the reflected glare (in the design of the lamp with polarizing film). Most of the table lamps on the market are playing “eye protection” “protection of vision” “no radiation” “no strobe” and so on Advertising slogans as a selling point, the price is also several times higher than ordinary table lamps, basically two or three hundred dollars a piece. There is no real sense of eye protection lamps, and the lack of industry standards and market entry thresholds, which makes it difficult for parents to identify. Theoretically, the flash frequency is small and the wave band is comfortable for the eyes, so the light will play a protective role for the eyes. However, so far, our country has not been this type of product to regulate and strict gatekeepers, these “eye protection” products in the end whether the corresponding function of vision protection, it is difficult to determine. The basic working principle of the strobe-free eye protection lamp is to improve the low-frequency flash to high-frequency flash, it uses a frequency conversion electronic ballast to speed up the flashing speed to thousands or even tens of thousands of flashes per second, the speed of the flashing exceeds the speed of the nerve response of the human eye, so in this light study, office, people will feel more comfortable eyes. Phosphor in a few milliseconds under the afterglow, so it will not produce the so-called light and dark changes, no light and dark changes will not have strobe. In fact, in the frequency of tens of thousands of hertz and amplitude stable signal drive, fluorescent lamps will be continuous light “no strobe” phenomenon. Most of the energy-saving table lamps on the market now use high-frequency switching power supply technology, although reducing the strobe phenomenon, but if the circuit is not designed properly, the lamp will produce a certain amount of electromagnetic radiation, which is not good for health. LED table lamps are an exception, although these lamps with DC power supply, but its color temperature is not suitable for table lamps, blue light, more detrimental to the eyes, so the use of LED lamps as table lamps is not recommended. The color temperature value of the lamp luminous determines the softness of the light, too high and too low are not good, 4000K to 5200K is more suitable. Among them, 4000K to 4500K eye protection lamps, light slightly reddish, more soft, suitable for elementary school students; and 4500K to 5200K color temperature value for secondary school students and above age customers. Energy-saving lamps and plug-in tube lights as lighting products, its energy-saving effect is outstanding, can save electricity about thirty to fifty percent. Their eye protection effect lies in the fact that the light emitted is softer and less harsh. However, any non-natural light source has a certain impact on vision, so to protect the eyes, the main thing is in operation, the lampshade is pressed down to cover the light source. The heavier the base of the table lamp, the more it can keep the center and not easily fall down. There are still some of the more backward electric pole ballast eye protection lamps on sale, be careful when buying and selling. The selection of eye protection lamps have three look. One to see the appearance, the appearance refers to the light of the eye protection lamp, qualified eye protection lamp light generally without any strobe, relatively soft, not harsh, the brightness of light is more uniform. Second, we must look at the documents, eye protection lamp product certification, product safety certification and other documents to complete? There are also sufficient spare parts such as lamps to ensure that consumers need from time to time. Three to see the after-sales service, eye protection lamp use and maintenance methods are particularly important. Before the sale, there should be a shopping guide on the spot demonstration, and after the product is sold, there must be a real repair address and telephone. In short, to buy a real “eye care” eye care lamps, you have to keep your eyes open to a certain size of the mall to pick.