COMPATIBILITY: Universal adaptor converts bayonet cap (BC/B22) light fittings to Edison screw (ES/E27) fittings, expanding your bulb options SIMPLE INSTALLATION: Quick and tool-free fitting process - simply insert into B22 socket and twist to secure firmly in place DURABLE CONSTRUCTION: Made from high-quality heat-resistant material suitable for regular household light bulb wattages VERSATILE USE: Perfect for table lamps, floor lamps, pendant lights and other domestic lighting fixtures with B22 fittings DIMENSIONS: Standard size converter measuring 2.2 centimetres in diameter and 4 centimetres in length