Screw-in bases, also known as Edison lamp holder and light bulb sockets are used through out the world.
The conventions include terms like medium base and candelabra base. Often they are referred to with a letter-number designation that starts with an "E" followed by the number of millimeters in diameter of the base. If your base ends in a "d" this indicates a double contact base, this is typically used for 3-way bulbs.
Typically North American 120VAC bases and 240VAC bases differ by only a millimeter and carry the same full name in each country. Many EagleLight bulbs support both 120VAC and 240VAC, check specifications for the bulb to determine if the bulb
"E" or Edison base types, sizes and names,
Range of high quality
porcelain lamp bulb holders. Our range includes many types of ceramic lamp holders including; ES, B22,
GU10, E40, GX5.3/GY6.35 and GU4/GX5.3. Suitable as replacements for most applications or for new projects. Most items carry full approvals of CE and VDE and / or UL approval and all are compliant with RoHS. Suitable for many applications where heat is an issue such as aquariums and vivariums.
Base Number Diameter Base or Socket Name
E5 5mm Lilliput Edison Screw Base
E10 10mm Miniature Edison Screw Base
E11 11mm Mini-Candelabra Edison Screw Base
E12 12mm Candelabra Edison Screw Base
E14 14mm Small Edison Screw Base (supports 240V)
E17 17mm Intermediate Edison Screw Base
E26 26mm Medium Edison Screw Base
E27 27mm Medium Edison Screw Base (supports 240VAC)
E39 39mm Mogul or Giant Edison Screw Base
E40 40mm Mogul or Giant Edison Screw Base (supports 240VAC)
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