Almost all 4000 Watt inverter manufacturers provide OEM service. As a main kind of custom service, OEM is focused on the personalization by material, size, color and other specifications. It is aimed at meeting clients from different industries. This is an effective way to achieve win-win situation between factories and brands. The OEM service providers are hoped to well control the cost, and to ensure that the products could help optimize the client’s brand value.

Relying on capability in manufacturing off grid on grid inverter, Wenzhou Xihe Electric Co.,LTD. has transcended most other manufacturers in the domestic market. The 4000 Watt inverter series is one of the main products of Fangpusun . The quality check of Fangpusun 4000 Watt inverter is strictly carried out. This includes, for example, testing the consistency class, the water binder value, and the air pore content. It will automatically shut down to prevent the generated energy from harming people when there is a blackout. Fangpusun has been devoted to providing the zero-fault mppt solar charge controller as well service to increase customer satisfication. With the circuit protection function, its components such as fuse are not easily burned out.

Sustainability is inherent in our company's culture. All raw materials, production processes and products are fully traceable, accredited, and validated in an independent, published life cycle assessment study.