Today’s children face the pressure of heavy school work, parents want their children to learn, but also worried about their young near-sightedness. 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 to 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. The basic working principle of the strobe-free eye protection lamp is to raise the low-frequency flash to high-frequency flash, it uses a frequency conversion electronic ballast to speed up the flashing speed, raised to thousands or even tens of thousands of flashes per second, the speed of the flashing exceeds the speed of the human eye’s neural response, so in this light to 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. Lamp light-emitting color temperature value 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 lamps as lighting products, their 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 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 is generally without any strobe, softer, 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. Third, look at 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 the real “eye” eye protection lamps, you have to keep your eyes open to a certain size of the mall to pick.