110-120V/ 220-240V 150W, 250W, 400W, 600W Electronic Ballast for High Pressure Sodium Lamp.

Han Yuan electron Co., Ltd., founded in August 2003, is a relative stock-holding company with limited responsibility attached to Han Guang Electron Device Factory. Han Guang Electron Device Factory is not only a key enterprise making electronic vacuum devices but also one of the designated manufacturers for scientific researching and manufacturing military electronic devices. It's a secondary large enterprise in China and one of the high-new technology enterprises in Hubei Province.