ED introduce a purpose. Relations visible spectrum and LED white light. All week, the visible spectrum wavelength range 380nm ~ 760nm, the human eye can feel the seven-color light - red, orange, yellow, green, cyan, blue, purple led display, but all seven colors of light each is a monochromatic light. For example, the peak wavelength of the LED is red for 565nm. In the visible light spectrum, there is no white light, because white is not monochromatic, but by a variety of synthetic composite monochromatic light led manufacturers, just as the sun consists of seven synthetic monochromatic white light, and color television Machine white light is composed of three primary colors red, green, blue synthesis. Thus, to make the LED emits white light, its spectral characteristics should include the entire visible spectral range. But to manufacture such performance LED led light source, under the present conditions is impossible. According to study of visible light, the human eye can see is white, mixing must be at least two kinds of light, ie the second wavelength light (blue light + yellow light) or a three-wavelength light (blue light + green light + red light) mode . White these two modes, you need a blue light, so the intake of white blue light manufacturing has become a key technology, which is currently the major LED manufacturing companies chasing the "Blu-ray technology." Currently available "Blu-ray technology," only a handful of international manufacturers, so the white LED application led, in particular, high-brightness white LED in the promotion of our country there is a process. LED light source with the use of low-voltage power supply, low energy consumption, applicability, high stability, short response time, the merits of environmental pollution, and other multi-color light, although more expensive than existing lighting equipment is expensive, it is still considered inevitably replace the existing lighting devices. led- characteristic features and advantages of the LED LED inherent characteristics of the decision that it is the ideal light source to replace the traditional light source, it has a wide range of uses. led mining lamps, lighting Pape (certified), Wuhai led by Wuhan Pape Lighting Limited. Pep Lighting Co., Ltd., Wuhan (www.peipuled.com) is Wuhan City View light fixtures leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Pep lighting in leadership with the staff warmly welcome all inquiries negotiations to create a better future for lighting Pape.