Introduction • Fol lowing the trend for the ut i l izat ion of alternative energy sources, solar energy has experienced explosive growth. Even so, at this point in time, from the point of view of economic efficiency, the production cost of solar energy is quite high. This is why solar power sources are often integrated with energy efficient LED lighting products. . • Market forecasts predict that by the year 2010, LED lighting market will surpass 30 million and the predicted growth rate from 2006-2010 will reach 20%-30%. .