Guangzhou Zhengji Electronic & Lighting Tech Co., Ltd. (RJ lighting) is a high-tech company integrating R&D, manufacture, sales, and service together. Our company owns "RJ" brand. We are a professional manufacturer of high bay lights, Lighting lifters(wire control lifter and remote control lifter), electronic ballasts, street lights, flood lights, etc. Main products and services Ballast Series: 1) Sodium lamp electronic ballasts; 2) Electronic ballasts for metal halide lamps; 3) ...