The white LED can be 2 or 3 kinds of monochromatic light

 The white LED can be 2 or 3 kinds of monochromatic light generated by a LED synthesis can also   MR16  be by few monochromatic light LED Assortment white trichromatic synthesis principle, as shown in Table 2. At present, the commercialization of white LED three light way: T8 Tube

(1) at a wavelength of 460nm InGaN blue grains coated with a layer of YAG fluorescent substance, the fluorescent substance of blue LED light, yellow light of a wavelength of 555nm can be generated, recycling lens principle can be complementary to blue, yellow mixed can emit white light (see Figure 2). Spectrum strong blue spectrum, the lack of red spectrum, color rendering index Ra to reach 70. This is currently the most widely used white LED production principle.  LED Flexi

(2) the UV chip inspire RGB trichromatic phosphor, the light-emitting mechanism similar to the three-color fluorescent. Change the phosphor composition ratio, you can get a variety of color temperature of white light, the color is better. LED Lighting china