You can find all technical details from Flos on this page.
This can be connected to 110-240V and the power cord comes with switchable power plugs.
So, this item can be used in the USA.
These lights do not have LED bulbs, but LED modules which are fixed inside the fixture.
You can't just unscrew and replace these LED modules like a normal LED bulb.
They are designed to last for a long time and not to be replaced.
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