Features: White lamp base, round body, small and simple shape, practical design. Quality material, highly temperature resistant and flame retardant, long service life. Perfect for bulbs that need to be converted to a standard E27 base. Easy installation and use. Can be used in study, bedroom, living room, dining room, parlours, bar, corridors, balconies and so on. Specifications: Material: ABS+Copper Color: White Size: about 12.50cm/4.92inch (more detail size please refer to pictures) Installation method: exposed installation Voltages: 110-220V Frequency: 50Hz Package Includes: 1x E27 Lamp Base note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.