Why does UV LED replace UV mercury lamp?

UV LED that is UV light-emitting diode, is a direct conversion of electrical energy into ultraviolet light semiconductor devices. The working temperature is usually below 100 ℃, with long life, high luminous efficiency, low power consumption, no heat radiation and other characteristics, UV LED in the PCB, microelectronics, medical equipment, optical, optical communications and other industries with a wide range of applications and market. Mercury is the only liquid metal at room temperature, mercury vapor is highly toxic, the United Nations Environment Program as a global pollutant, it will through the respiratory tract, esophagus and skin into the human body, causing harm to human health. There are also great shortcomings in the recovery of mercury lamps, and the mercury lamps that are discarded at will can cause great damage to soil and groundwater sources. Figure 6, UV LED market share increased from 10.4% to 28.1%, UV LED attention continues to heat up, is expected by 2020, the global UV LED technology market complex year The growth rate will reach 39%, higher commercial value. The application of semiconductor light source in lighting can be divided into electronic equipment lighting, landscape lighting, projection lighting, automotive lighting, safety lighting, special lighting, traffic lights and so on. In automotive lighting, LED is known as the 4th generation of automotive light, with incandescent lamp can not match the advantages. LED lights with no delay, energy saving longevity, low heat, earthquake, high color purity and many other features, has become a tungsten lamp, halogen lamp replacement. Automotive interior applications such as instrument panel reading lights, external applications such as taillights, brake lights, direction lights, headlights and so on. Automotive lighting is the fastest growing application of LED lighting. In the electronic equipment lighting, UV LED with low power consumption, small size, long life characteristics, is the first choice for a variety of electronic equipment, light, almost all of the electronic equipment has LED applications, and LED lighting has been developed to the goods Of the stage, in the life of a certain space for development. In the projection lighting, UV LED can increase the service life, and changed the projector structure, due to reduce the cooling requirements, UV LED in the heat and noise has a good performance. Contrast the advantages of UV LEDs. Environmental impact UV LED does not contain mercury, it will not produce ozone, safe, environmentally friendly; mercury lamp mercury, toxic, improper handling of soil, groundwater and even human health hazards. Life span UV LED is not affected by the number of open and close, the service life of up to 20000-30000 hours; mercury lamp heat, life is only 800-3000 hours. Heat radiation UV LED, the surface temperature of the product being irradiated below 5 ° C; mercury lamp, the surface of the irradiated product increased by 60-90 ° C, the product positioning displacement, resulting in poor product. 4. Turn on time. UV LEDs do not need to preheat immediately to 100% power UV output; mercury lamp need to warm up for 10-30 minutes, time is long. 5. calories. UV LED work heat is much smaller than the mercury lamp, on the one hand to improve the LED life, on the other hand to solve the high temperature work environment to bring workers health damage. 6. Maintenance costs. UV LED maintenance costs are almost zero, the use of UV LED curing equipment at least a year to save 10,000 yuan / Taiwan supplies costs; mercury lamp maintenance costs higher. 7. Irradiance. Using high-power LED chip and special optical design, the UV light output reaches 8600mW / m2 irradiation intensity, the illumination is twice the traditional mercury lamp way, greatly improve the production efficiency. 8. Drive voltage. UV LED drive voltage at 5-10V, much less than 100 - tens of megawatts of mercury lamp. 9. Optical design. UV LED high degree of freedom, can be miniaturized, lightweight design; mercury lamp limited, low flexibility. With the continuous decline in the cost of UV LED, UV LED popularity of the application is moving in the field of industrial assembly and daily necessities in-depth, UV LED advantage will become increasingly evident.