Photovoltaic Controller Controller is able to automatically prevent battery overcharge and over-discharge devices. As the battery's charge and discharge cycles and an important factor in determining the depth of discharge of battery life, and therefore can control the battery overcharge or overdischarge of the charge controller is essential equipment. Commercial construction and installation of photovoltaic systems and the effect is similar to the industrial park of national policy photovoltaic power generation, except that commercial buildings are mostly cement roof PV system, a more favorable and install photovoltaic solar arrays, but often there are requirements for building aesthetics, According to the characteristics of commercial buildings, office buildings, hotels, conference centers, resorts and other services, the user load characteristics of the general performance of high daytime and low at night, can better match the photovoltaic properties. Photovoltaic systems, photovoltaic Shiyan, day-giant technology provided by the Wuhan days Hui Technology Co., Ltd. giant. Wuhan Tian Hui Ju Technology Co., Ltd. (www.thjnkj.com) (www.thjnkj.com) strong, credible, in Wuhan, Hubei and other energy-saving equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the day-giant into the brilliant technology and you work for a better future!