E26 Vs E27 Bulb Base

You may see low cost led bulbs using an e27 base on ebay and amazon from foreign suppliers.

E26 vs e27 bulb base.

E26 e17 e12 from left to right. This is because e26 bulb bases are assumed to only receive voltages up to 120v ac and not 240v ac. So for an e26 bulb the diameter of the base is 26 mm while the e27 has a base diameter of 27 mm. The european variant the e27 is rated at 240 volts.

In general bulbs with an e27 designation are safe to use in e26 lampholders but e26 bulbs may pose an electrical safety hazard when used in e27 lampholders and 240v ac. E26 stands for 26mm and the e27 for 27 mm in diameter. However an e26 bulb can fit in e27 base and an e27 bulb can fit in e26 base without problem. Thus a e26 has a 26 mm base diameter.

It is easy to put an e26 bulb into an e27 socket. Samples of bulbs with these bases. E39 north america e40 goliath es in europe. Photo of the relative internal sizes of the sockets.

The only difference is the voltage light bulbs that are 120 240volt. The number following the e indicates the size in mm of the external thread screw. Socket e26 stands for 26mm and the e27 for 27 mm in diameter. For more information about bulb shapes be sure to read more here.

The e26 is the standard 120 volt american base. The e26 is rated at 120 volts. The same size as a standard a19 bulb. Those two standards are interchangeable meaning a us e26 will fit a european e27 base and e27 will fit in an e26 base.

The only difference is the voltage. E26 mes in north america e27 es in europe. The e27 is the european variant and is rated at 220 volts.