Zhejiang Railen Electric Technology Co., Ltd. is a high and new technique enterprise, established in 2006. We are engaged in producing and selling automation controllers, liquid level controllers, Pex-B and water level pump products. We are located in Haiyan, just 110km away from Shanghai with convenient access to land and water transportation network.

With our great effort and strong support from our customers, our product functions become perfect gradually, quality becomes more and more stable, and ratio of performance and price of our products rises further. With our strong quality controlling ability and our professional service, more and more customers gradually accept our products. They provide us with a strong support to make further development and we produce new high quality solar controllers for them.

Our engineers have strong technique development and research ability, which ensures us to be able to develop new products to cater for customers' requirements in a short time. We also provide OEM products according to customers' requests.

"Railen" solar controllers will give you a new expression of high degree automation and convenience for maintenance and operation. Our solar controllers will ensure you comfortable hot water supplying. It will be great honor if our controllers can bring large profits to you.