Yueqing Sandi Electric Co., Ltd is an international PV enterprise which is located in the "capital of China's electrical appliances" Wenzhou. Specialized in the new energy source and electrical source scientific research, development, manufacture and service had surpasses for 15 years.

Sandi company's products are widely applied in fire fighting, construction, industry, new energy source, civilian use, electric power, medical treatment, aviation, automatically control system of war industry and national heavy engineering project.

Main products: grid-connected inverter, off grid pure sine wave inverter, solar pump inverter, PV inverter-controller integrated, PV array combiner box, solar junction box, on grid inverter, grid tie inverter, solar charge controller, wind-solar hybrid controller, single phase to three phase converter, power phase converter and very low frequency AC high voltage tester series products.