To me, there is a big difference.
The US version (middle) and the clear lens (whatever that is? never made for the Italian market) don't look good at all.
They've both got that crazy rectangular shape in the middle and the area where the screws go look horrid.
In comparison, the Italian lens (right) is very nice around the screw holes and is a bit deeper orangish/red than the US lens....although this may not show that well in the pic.
The Italian versions are very rare as they were made for a small number of cars in one European country only (Italy).
Thus they are super difficult to find.
I've been on the hunt for the left side for at least 6 months now.
And yes, I believe the arrow is directional. The other two lens don't have that small detail.
And no, the Italian lens is not reflective.
For me, that is not an issue as I just want mine to light up at night.
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