Dongguan Superbright GZG Lighting Energy-Saving Technology Co., Ltd. was founded in 2004, named Dongguan KangHua Mechanical and Electrical Equipment Co., Ltd. then. We are engaged in mechanical and electrical equipment and the R&D of lighting products. Dongguan Kanrui Energy-Saving Technology Co., Ltd. was established in 2006. Dongguan Linrui Energy-Saving Technology Co., Ltd. was established in 2007. Our electronic ballast was approved by Chinese Center Government Purchase NET. In 2008, ...