LED light-emitting diodes have been recognized as the most efficient artificial lighting technology in the world. Nowadays, LED lighting is widely used from various indicators, street lamps, holiday lanterns, to notebooks, TV backlights, and ledtubelights. And this trend is increasingly obvious, it is widely 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 LEDs are likely to be offset by the toxic substances they contain. The researchers analyzed red, yellow, green, and blue LED lights in the Christmas tree lanterns that are common on the market, including both high-brightness LEDs and low-brightness products.
The results show that these LED lamps contain antimony, arsenic, chromium, lead and many other metal elements. Among them, the toxic element content of some LED lamps has exceeded the standards set by the regulatory authorities. In fact, the treatment of toxic elements in LED lamps is also cumbersome, and treatment with ordinary landfills will contaminate soil and groundwater. If the LED light is broken, it may also cause damage to human health in direct contact.
In addition, LEDs need to be relatively narrow on a single light-emitting surface, and are usually integrated on a large-scale circuit board to form a relatively large light-emitting source, which causes a large amount of heat to accumulate and sometimes breaks down the circuit board. Therefore, the heat dissipation of the LED lamp must be good, otherwise the LED lamp may be damaged quickly. For this, it is also necessary to innovate in technology. Of course industrial design can play an important role.
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