it is extremely difficult to bond the two metals

Upon completion of the LED Lighting Institute, participants will earn three continuing education units and will receive a Continuing Education Certificate in LED lighting technology.The LED Lighting Institute has gained notable support from sponsors who see the benefit of LED lighting education. The main sponsor is the Alliance for Solid-State Illumination Systems and Technologies (ASSIST), a collaboration of researchers, manufacturers, and government organizations designed to identify and reduce major technical hurdles and help LED technology gain widespread use in lighting applications. led high bay light sponsors include Bridgelux.

After several years of foundering holiday sales for energy-efficient LED lighting, LED manufacturers and retailers reported sales that were surprisingly brisk even during an economic downturn.Light-bulb maker Osram Sylvania said it doubled its LED sales since last year to between 15 million and 20 million LED units. LEDs can be three times more expensive than conventional incandescent lights, but they use 90 percent less energy, produce less heat and last longer. Some consumers calculate that an average string of LED lights saves enough energy to pay for itself in as little as a year.

The company says the melting point of copper is 1083C; however, the melting point of aluminum is 550C. Therefore, it is extremely difficult to bond the two metals. Without excellent bonding interface of copper and aluminum, the heat can't spread from copper slug into aluminum smoothly. Therefore, the heat of LED chip accumulates within copper. Finally, LED chip fails because of overheat.Besides, Microsolar are also developing 200W LED module for street lamp. With excellent thermal spreading by Copper-Aluminum bonding, the 200 pieces of LED chips can provide over 14000 lm. In the near future, we can see more led high bay light than traditional street Lamps.