Rebaydo 2pcs B22 to Dual E26/E27 Y-Shaped Socket Converter designed to convert a B22 socket into two E26/E27 female sockets, allowing the use of standard Edison screw base bulbs. This Y-shaped adapter requires no special tools for installation and increases light output by supporting two bulbs from a single socket. It is CE and RoHS listed and measures 2.85 inches in overall length, with a B22 base diameter of 0.86 inches (22mm), E26/E27 side diameter of 1 inch, and a maximum width of 2.97 inches, making it suitable for residential and commercial lighting applications.