The LED industry is not perfect and still needs to be improved

LED light emitting diodes have been recognized as efficient artificial lighting technology, and now from various indicator lights, street lamps, festival lanterns to notebooks, TV backlights, furniture display tubes (ledtubelight) LED lighting is widely used, and this trend is increasingly obvious. It is generally believed that replacing traditional bulbs and fluorescent lamps with LED lamps is a very environmentally friendly and efficient method. However, LED lamps are not perfect, and the challenges they face are also very serious. Recent surveys have shown that the environmental benefits of using LED are likely to be offset by the toxic substances it contains. Researchers analyzed red, yellow, green and blue LED lights in common Christmas tree lantern groups on the market, including both high-brightness LED and low-brightness products. The results show that these LED lamps contain antimony, arsenic, chromium, lead and many other metal elements. Among them, the content of toxic elements in some LED lamps has exceeded the standards set by the regulatory authorities. In fact, the treatment of toxic elements in LED lamps is also troublesome. If ordinary landfill is used, soil and groundwater will be polluted. However, if the LED lamp is broken, it may also cause damage to human health in direct contact. In addition, LED needs to be integrated on the circuit board on a large scale to form a relatively large light source due to the relatively narrow single light emitting surface, which will cause a large amount of heat accumulation and sometimes penetrate the circuit board. Therefore, the heat dissipation of the LED lamp must be good, otherwise it is likely to cause the LED lamp to be damaged quickly. For this point, technological innovation is also needed. Of course, industrial design can play an important role.