This product is mainly used in photography. It is a 3 in 1 studio E27 lamp socket splitter adapter for studio daylight bulbs. If you want to upgrade your single socket lights, convert a single bulb light to 3 bulbs light, this is the best choice. Features include 3 bulbs installed in one single socket, ideal for using in photography, and a three in one E27 to E27 design. Specifications include a rated voltage of 85V-230V, rated current of 6A, and a shell material of PBT. The package includes one bulb base adapter.