Welcome to The Colonnade in Sardinia. I love this place. They have their own art gallery, among other amenities.
Have a look:
Now look at the light...
They use LED. Throughout this blog I refer to heat exfiltration, which is a fancy way of saying incandescent throws 300 degrees of heat. You can't touch an incandescent bulb for this reason. I have always mentioned this as an additional cost to your HVAC.
Over time, low voltage, incandescent will also discolor artwork, because of the heat. LED emits very little heat, and is thus the bulb of choice in most galleries.
So be careful of how you illuminate art and other objects.