Zhenjiang Tianlang Luminous Energy & Photoelectricity Co., Ltd has been a professional manufacturer of solar water heaters and accessories for more than 8 years. Our factory is located in zhenjiang City which is near Shanghai city. The transportation is very convenient here with highways and it only takes 2 hours by car..Our main products are solar water heaters, and we also design and install projects of various solar water heaters and solar energy projects integrated with building. 70% of ...