Established in 1990, specializes in R&D, manufacture and marketing of wireless doorbells , energy-saving lamps, auto. and solar generation system. As founder of wireless doorbells, we enjoy the longest producing history and an experienced technologist team including our General Manager. We had more than 20 years focus at wireless technology. Besides, we are the first doorbell factory approved by ISO 9001 in China. our brand name "EXPERT", a pronoun of wireless digital door chime in mainland China and Hong Kong, our products are very popular in Southeast Asia, Europe and America. We maintain a technological edge over energy saving manufacturers thanks to our experienced design staff and 18 years&＃039; history as an electronic manufacturer. We also benefit from our design partnership with Fudan University, one of China&＃039;s most respected research institutions. That is why Homedept, B&Q and other top retailers turn to us. Each of our energy saving lamps, T5 tubes and ceiling fixtures in our 400-model catalog is truly cutting edge. Our latest releases include 500W energy-saving lamp are the most powerful unit on the market. We also offer 0.5W energy-saving lamp that barely register on the ammeter. As auto market grows up continuously and new energy power develops, we begin to devote to these filed, HID xenon light system and solar generation system get good feedback from the market. Our products are approvalled by CE, ROHS, FCC, E-mark, and ISO9001 quality system.