Bull is an international electrical devices provider dedicated to technological innovations. Bull’s superb management system and innovative products in adapters and domestic power connection devices have provided our customers with a safe and comfortable environment for using electricity, thus improving life quality. Bull has built an industry-leading R&D and design team to meet our customers’ needs, of which it has done thorough investigations. Bull Adopts stringent American and European quality assurance standards and systems, and each product has to go through over 300 tests before it is approved for marketing. Bull has established an international standard laboratory that is officially certified by the US-based professional certification organization UL. After years of growth, its testing center has developed capabilities and methods that measure up to China’s and IEC standards for plugs, sockets and cables, and up to the standard testing requirements of 30 countries including the US, Japan, and European countries.