Shenzhen Eternal Greater Electronics Co.,ltd is a transformer factory from China, specializes in the design and manufacture of transformer, adapter and charger. We possess a batch of senior technicians and several experienced engineer, about two hundred well-trained workingmen and efficient production and management team. We have advanced production equipment and inspection devices in relation to electrical performance and safety, such as frequency conversion device, high voltage test machine, transformer integrated test machine, Oscilloscope and so on. We have R&D office with full equipment, can quickly design and make samples with good combination of quality and cost, and manufacture it soon. Our company products pass UL, CE, CCC certification.