DescriptionThis item is reliable and excellent light lamp holder adapters, which are made of high-quality material. To convert from E40 to E27 base. Easy to install and convenient for your to use, nice and wonderful LED light socket adapter for choice. Features- Color: Mainly black, silver. - Material: Aluminum alloy, PVC. - Size:5.00X4.20X4.20 cm/ 1.97X1.65X1.65 in ch.- Note: suitable for E40 to E27 light head. - Select high-quality materials, the product is sturdy and durable, excellent and useful, safe and practical. - Easy to install and convenient for use, to convert from E40 to E27 LED light screw base. - Nice and wonderful LED light socket adapter for your choice, perfect for meet your requirements. - The unique design, excellent and good performance, wonderful useful function, not easy to break.- Suitable and excellent for garages, workshops, basements, carports, shops, monitoring systems. Packing list: 8 x lamp head converters