Hanguang Electron Device Factory (namely the State-Run 4404 Factory) is a key enterprise making electronic vacuum devices. The factory is not only an important base for deve loping and manufacturing high power klystrons but also one of the designated manufactruers of military electronic devices. It is a secondary large scale enterprise in China and one of high-tech enterprises in Hubei Province, which manages import and export by itself. Xiaogan Sungong Lighting Co., Ltd. is its branch company, which is specialized in the manufacturing of Auto Lighting Sources Series, Stage Uses Lighting Series, Industries Lighting Sources, Special Lighting Sources, HID Lamps, Metal Halide Lamp Series and Electronic Ballast for auto and ect. We have been manufacturing and exporting the lightings for many years. With excellent quality and fully competitive price, our products enjoy high reputation at home and abroad. The products can be widely used in video, stage, advertisement, aviation, commercial and industry field. We have always been dedicating to develop high-tech lighting sources to meet our customers' requirement.

"Sangong" Brand sealed beam and H series headlamps are welcomed by the customers at home and abroad due to their good quality, low price and good service. The products have features of high luminous intensity, high efficiency, long range of lighting, waterproof, shock- ingproof and ease for replacing. They are suitable for all kinds of automobiles.
Main market:Europe,North America, South-east Asia, Middle East and Africa.
Products are: sealed beam, H1, H3, H4, H7, 9004, 9005, 9006, 9007 and PAR series lamps for stage using and underwater.