Table lamp must first determine the illuminance and color temperature of the lamp tube. If the ordinary lamp tube cannot achieve good lighting and has no eye protection function, you can choose three-color eye protection lamp tube. The color temperature of 4500K is close to natural light. If the color temperature is too high or too low, the purpose of eye protection can not be achieved.
Eye protection desk lamp is not an amulet. At the same time, we should pay attention to reading and writing posture, ensure eye hygiene and have good eating habits.
According to the relevant standards, a qualified eye protection lamp (light source) is qualified if it is 40cm away from the desktop and can still provide 500Lux, but at the same time, the coverage must be as large as possible, which depends on the illumination width of this lamp, but only professional display equipment can measure the results, so you can consult customer service when purchasing to meet the general table width of 60cm.
Some eye protection lamps have their own ambient light recognition function, which can brightness level (supplement) brightness according to the current environment. This is very humanized and gives children a healthy writing environment. Of course, this investment cannot be saved.