1 illumination characteristics. Limit the significance of parameters (1) to allow power Pm: allows you to add to the positive DC voltage across the LED with a maximum current flowing through it the product of. LED lighting board exceeds this value, LED fever, damage. (2) The maximum forward current IFm: allows you to add the maximum forward current. Exceeding this value can damage the diodes. (3) The maximum reverse voltage VRm: the allowed maximum reverse voltage applied. More than this value, the light emitting diode may be breakdown. (4) Working environment topm: light-emitting diodes with a working temperature range. Lower or higher than this temperature range, the LED will not work, efficiency is greatly reduced. Without changing the premise of the material in the LED limits, higher brightness means is to increase the current, as the current increases, LED heat will soar. Used LED light source portable projector, or micro-investment of friends, we all understand, LED light source projector, very hot, and generally there will be significant noise. These products, small body is one thing, the key is large due to its own heat. With the increase in power, LED heat dissipation becomes more and more prominent, a large number of practical applications show, LED input power can not increase the basic reason is due to the LED during operation will release a lot of heat, so that the die junction temperature quickly rises, the thermal resistance becomes large. Input power, the greater the heating effect. At elevated temperatures will lead to changes in device performance and attenuation, non-radiative recombination increases, the leakage current of the device increases, the growth of the semiconductor material defects, the metal electrode migration, yellowing epoxy encapsulation, etc., seriously affecting the LED photoelectric parameters. And even the power LED failure. Thus, for LED devices, reduce the thermal resistance and junction temperature, thermal properties of light emitting diodes research seems increasingly important. The different needs of a senior stores, shopping malls and other indoor commercial lighting atmosphere energy saving LED light source, no UV LED lighting manufacturers, to meet the psychological some personalized light show business environment, it has become some businesses for some special product demonstration Preference light source; it full spectrum color range is very suitable to heighten the atmosphere of stores and shopping malls, LED light in local lighting, accent lighting and area lighting advantages of LED lighting, to create a power source other traditional lighting can not match the high-quality light environment, ideal for commercial lighting domain. At this time, the price factor has become a secondary consideration. Second, the entertainment, beauty salon lighting LED light source with an integrated full-featured easy to control, you can create static and dynamic lighting effects Xi promise LED lighting, any color from white to full-spectrum, rendering the atmosphere of entertainment to a strong, LED to the emergence of such space decoration design environment opens up new ideas. LED lighting manufacturers, learning Connaught Electrical and Mechanical (certified), Shunhe District Kaifeng Henan LED lighting provided by conventional Connaught Electrical and Mechanical Equipment Co., Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) is Zhengzhou, electronics, electrical products processing leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In practice Connaught Electrical and Mechanical leadership with the staff warmly welcome all inquiries negotiations to create learning Connaught Electrical and Mechanical better future.