Established in 2003.SHENZHEN KEYUANTAI CO., Ltd is one factory which specialized in researching , manufacturing and sales all kinds of adapter and charger .manufacture plant covers an area of 3000 square meters .we have more than 200 skilled employees. All of our products can be design to 5w-600W ,two hundred series of products for clients choose . our products including AC/DC adapter ,DC/DC adapter .PFC power supply . Switching power supply . Charger Security equipments and LED power supply .and large power of iron shell power supply ,also OEM is welcome .we can finish the products in one week from we got the order .Company have attained the SGS quality system certificate and most our products have attained the UL .GS .EK .SAA .TUV .FCC .GS .CE. and PSE certificates , we have the outstanding technique and testing equipment ,such as automatic wave soldering and reflow soldering machine. AI plug-in machine ,mounter ,switching power supply automatic test system ,ROHS spectrum analyzer and so on .all material of our product are best materials to ensure the products high efficiency , with years of professional engaged in R&D and manufacture of switching power supply experience, our products not only sold in domestic but also sold in to USA, Europe, Southeast Asia, Korea, Japan and other countries, depended on the reliable quality, punctual delivery ,and competitive price .our brand is very popular in the international market.Our company operating principle is: efficiency . Innovation . Stabilization .developmentOur company goal is to meet all customer needs while ensuring zero rate of defective productsIf you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.