UV leds themselves are alternative light sources, just as white leds replace fluorescent lamps in illumination and CCFL in backlight. The object of the revolution of UV leds is called "mercury lamps".

Figure: comparison of UV LED and traditional UV lamp (mercury lamp)

Since the alternative market, then contrast mercury lamp, UV LED can bring what? Is it a qualitative change or a quantitative change? As shown in the table above, we only choose three key points to mention:

(2) the wavelength is concentrated and adjustable
Mercury lamp spectrum is multi-peak, if the need to focus on a specific wavelength, by the filter mechanism to remove unwanted light, energy use is wasted! LED does not have this problem at all, you want 365 to give you 365, you want 280 to give you 280, still free to choose the desired wavelength, is really a solid good seller!

(3) the environmental protection
Obviously, you are called "mercury" lamp, must be forced to use you! UV LED the appearance lets an end will officially out of mercury burden, this is a natural, FengHangCaoYan, last year China's twelfth session of the standing committee of the National People's Congress conference approved the twentieth the minamata about mercury convention, let it blew very crazy, originally in 2013 between the United Nations "minamata convention", explicitly requires countries since 2020, a total ban on the production and import and export of products containing mercury, and joined in the United States, China is also followed, this represent?

Remember the story of "ten cities and ten thousands" in 2009? To feed the monks in the temple, more porridge is of course a hard method, but there are always not enough rice, if some of the monks can leave the temple, the results are similar.

So, in the beautiful sunset, the song of invisible light should also temporarily came to a close, in fact, the application of UV/IR, the direction of the technology is very much worth deep discussing, from which Angle, always can only make a two article shallow hands to type, let originally do not understand, irrelevant, not interested in friends, also can freely hum on one or two of romance and frivolous UV and IR.