Lot5 E17 to E26 LED Light Lamp Bulb Base Adapter Converter Easy to install. Simply screw the socket adapter into E17 type socket, and then screw in an E26 bulb. Enlarge the light bulb socket. Enlarge the intermediate socket (E17) to medium socket (E26). Widely used. Works with incandescent, CFL (Energy Efficient) bulbs and LED bulbs. Made with high quality material,Generates low heat