What Zanshin said. When I had a place on the French side many years ago I needed a heavy, bulky transformer. Now, all that I need is an adapter plug for anything that has 100-240 vac 50-60hz on the input side of the power supply. Some devices with motors, such as hairdryers, may not run at the correct speed and may overheat. Other hair devices such as curling irons and straighteners may be a problem too, but notebooks, tablets, and phones should be OK.

Search Amazon using the phrase “ power adapter for france “ and you’ll find many adapters to choose from.