Ombre,
Your neighbor may be correct.
My upstairs neigbor complained about the same thing before.
I checked my ceiling light and it was faulty.
One of the wire is already blackened and needs to be fixed.
My family was very shocked when the electrician showed us the
damage.
He said we are very lucky the faulty light did not catch
fire.
The switch we are using also has a bad connection, so every time we
turn it on, there will be tiny sparks coming out from it.
In the end, we paid a lot more to redo the wiring and change a new
light.
Now we have switched to those energy savings LED lightings.
Some people may be more sensitive to heat. That is perhaps why your
neighbor feels the warmth more than you.
Sometimes, just be a little more accepting and understanding.
It is not always about your own rights and privileges.