Shanghai Qiyu Optoelectronics Technology (上海琪瑜光电科技股份) is a company specializing in the development and manufacturing of lighting electronics and distributed energy electronic products. It offers various light-emitting diode (LED) lamp surge protectors, LED drive power supplies, LED lamp intelligent control systems, and lighting capacitors. The company also designs power electronic products for energy storage and distributed energy, such as DC support capacitors, filter capacitors, electric locomotive capacitors, high-voltage energy storage pulse capacitors, high specific energy high-voltage pulse capacitors, and intelligent power capacitors.