Specializing in intelligent HID electronic ballasts for high pressure sodium lamps (HPS) and metal halide lamps (MH) of indoors and outdoors, Qingdao Sanhuahuihai Electronic Co., Ltd. is an environmentally friendly high-tech company, which combines research, development, manufacture, sales and customer service. We are located in Qingdao . With a R&D team of eighty professionals, Sanhua Electronic enjoys both professional technology and fame in this industry. With technical supports from the test of National Center of Supervision and Inspection on Electric Light Source Quality (Shenzhen), we are able to produce high power factor (PF) ballasts with the newest manufacture technology and the world&＃39;s leading design. Sanhua&＃39;s HPS Lamps Electronic Ballasts support all the features of the electronic ballasts while offering significant advantages such as highly energy saving, environmentally friendly, no acoustic resonance and flicker-free. Besides, they have a notable advantage of "self-adapt and self-control ability", which is designed for the discharge of the characteristics of HPS and MH lamps and can work automatically and efficiently with them. Our products can be widely used in streets, highways, bridges, railways, tunnels, shopping malls, factories, seaports and other places like that. Our products have always been sold well in a great number of regions and countries such as Europe, North America and Southeast Asia, which enables us to win favorable comments from both at home and abroad. In the belief that "survival depends on quality, development depends on research and sales depends on credit", Sanhua Electronic provides topping products and services to worldwide clients. Our company will always do our best to satisfy all kinds of special requests from clients and looks forward to working together with you for a better Lighting World in future.