Along with our extensive collection of vintage bulbs and lamp parts we carry antique light bulbs that are 120-240Volt. From 30W to 60W Edison Marconi that could be used in Europe and all other countries which use 240 Volt. View our 240 Volt Bulb selection.
I have been getting some questions about the base size of those bulbs since in the US we use E26 and Europe uses E27. E26 stands for 26mm and the E27 for 27 mm in diameter. 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.
If you have a 240-volt incandescent vintage bulb you are able to use them in the US where the voltage is 120. The only issue is that the bulb will operate at approximately half the power or watt. For example, a 60 watt 240-volt vintage bulb will operate at 30 watts when used in 120 volts. The light will be dimmer of course, but the lifespan of the bulb should be longer. On the other hand, if you try using a 120 volt bulb in 240 volt, the light bulb will burn out immediately.