Folding desk lamp, flexible waist, high or low, convenient and simple; Clip-on structure, which can be clipped on the desk or on the bedside. According to the salesperson, the metal telescopic clip lamp is very popular with male students because of its simple appearance and convenient use. The biggest feature of this kind of desk lamp is: super-large adjustment range, the connecting part of the seat clamp can be rotated horizontally at 360 degrees and adjusted vertically at 60 degrees, the connecting part of the two arms can be adjusted vertically at 180 degrees, and the connecting part of the lampshade can be adjusted horizontally and vertically at 360 degrees. With two long arms, you can avoid the stimulation of light to your eyes at any time and take the desired photos. Eye protection lamp is the main feature of present desk lamp. Eye protection lamps occupy most of the market because of their energy saving, eye protection and environmental protection. Therefore, merchants have also introduced different kinds of eye protection lamps to attract consumers' attention, among which cartoon-shaped eye protection lamps are particularly popular. The basic working principle of eye protection lamp is to improve low-frequency flash to high-frequency flash, but high-frequency flash does not mean no stroboscopic flash. It uses frequency conversion electronic ballast to speed up the flashing speed, thousands or even tens of thousands of times per second, which exceeds the nerve reaction speed of human eyes. Therefore, when people study and work in this light, they will feel more comfortable with their eyes in a short time. According to the salesperson, the cartoon eye protection lamp can not only attract children, but also attract a large number of lovely female students. Our life is increasingly advocating low carbon and environmental protection, so more and more products also use energy-saving, environmental protection, safe and reliable LED. LED desk lamp is undoubtedly one of the popular choices. Although it is a little expensive, there is no doubt about its prospects and appeal. LED desk lamp is a desk lamp with LED as light source. "LED table lamp adopts special technology, DC power supply, no stroboscopic, no electromagnetic radiation, environmental protection, high efficiency and energy saving, long service life, dozens of times that of traditional light source, and sufficient illumination to meet your lighting needs."