I leave in England and I was looking for a power adapter for my French aircraft. Namely: These adapters work only for "small" plug type C (phone charger, flashlight, various feeder transformer ...). The "big" decision-type E / F (eg hairdryer, pc, power strip, TV, etc ...) are not compatible (the pins are too large to enter the adapter). By forcing bcp, it may be possible to fit the plug into the adapter but the land taken (either French or German) can not be connected. Too bad that this kind of "details" were not very important given in the product description that ultimately will not serve me much.