Electop E11 to E12 LED Bulb Base Adapter Converter Light Socket Lamp Holder(5 Pack) This adapter helps to convert your original E11 base to E12 base,enlarge your E11 mini candelabra base to fit E12 Bulb. Small size,light weight,easy to install. Suitable for all voltage. LED Halogen CFL Light Bulb Lamp Adapter. High temperature resistant and anti-aging.