E27 to B22 adapter Easily mount the adapter in an E27 fitting and use B22 bulbs without any problems. Thanks to the high-quality workmanship, the adapter has an optimal fit. This adapter is compatible with all common light sources such as LED, halogen or energy saving bulbs. Electrical data Electrical data Rated voltage in V: Nominal voltage in V: 250 Operating temperature in °C: Working temperature in °C: max. 200° Dimensions and weight Diameter in mm: 32 Length in mm: 50 Net weight in g: 15