LED lighting need to solve the heat dissipation problem

　　Foreign operators have developed high-temperature white LED to improve the heat dissipation problems. However, high-power LED gives out ten times more heat than low-power LED and the rising temperature will also make the luminous efficiency fell sharply. Even the packaging technology allows high heat, but the LED chip junction temperature may exceed the allowable value. At last people think that it is not the fundamental method to solve the heat problem by improving the package.

　　About LED life , such as switch siliceous ceramic packaging materials and packaging materials , can improve a number of LED life , especially white LED emission spectrum contains wavelengths below 450nm short wavelength light, conventional epoxy resin material is destroyed. short wavelength , a large amount of high-power white light LED is more accelerated deterioration of packaging materials , according to the test results by the industry of less than ten thousand hours of continuous lighting , high-power white LED brightness has been reduced by more than half can not meet the lighting the basic requirements of long-life light source .

　　About the LED luminous efficiency and improve the structure of the chip and package structure, they can be achieve the same effects as low power white LED. The main reason is the current density increased more than 2 times, which is not only not easy to remove the light from the large chip, but will also result in luminous efficiency results as good as low -power white LED dilemma. If the chip is improved in electrode structure, it can theoretically solve the above problems in light extraction.