Photovoltaic power generation technology is already quite mature. But the conversion efficiency of the silicon cells which are heavily used now remains stagnant. Besides, large amounts of energy will be consumed during the process of production. It also makes serious pollution. Thus, to maximize utilization of solar cells will undoubtedly have a huge problem about economic and environmental benefits. LED has high luminous efficiency and is the ideal lighting source. It is supplied by the DC power. Combining solar power technology and LED lighting technology can save solar grid inverters, switching power supplies and many other necessary devices for grid-connected power generation, which increases the efficiency of solar cells and reliability, saves fossil energy and reduces environmental pollution. This paper introduces an controller combining solar power generation technology and LED lighting technology.