Solarfun Power Holdings Co. engages in the development, manufacture, and sale of photovoltaic (PV) cells and modules. The company offers monocrystalline and multicrystalline silicon cells and modules, monocrystalline ingots, and raw materials. The company's products are manufactured at company-owned production facilities, and it sells its products directly and through third party distributors to solar power system integrators and distributors. Additionally, the company provides PV cell processing services and PV module processing services. The company primarily operates in the People's Republic of China, Germany, Spain, and Italy through its subsidiary, Jiangsu Linyang Solarfun Co., and is headquartered in Qidong, PRC.