Yueqing Sandi Company has new energy source and electrical source department .The new energy source and electrical source department specialized in the scientific research, exploitation, manufacture and service of electrical source field; which recognized by widely customers according to entirely varieties, high quality and service first. At present, the researched products by our company basically contain the best product at home and abroad, which delegated the top level of electrical source manufacture all over the world. The main products are: Grid-connected PV Inverter, Fire fighting EPS, Inverter for EPS, Sine Wave Inverter, Grid-connected Sine Wave Inverter, Wind Power Inverter, UPS, Switch Power, Accumulator XSL, Intellectualized Charger, Transformer, Transformer for EPS, Test Inverter for Fire Fighting Assess Center EPS, Double-power etc series…… the products of company are widely applied in fire fighting, construction, industry, new energy source, civilian use, finance, business tax, electric power, medical treatment, aviation, automatically control system of war industry and national heavy engineering project.