"Faustino Dina" wrote:

I've been seeing recently the increasing offers of low voltage (12V)
lighting. At least one disadvantage is real: I need a voltage transformer
(and run the low voltage lines all over the house) to make it work. But
which are the advantage of these over conventional 110V lighting?.

Smaller fixtures. I got some small "hockey puck" type of lights to go
under the kitchen cabinets.

Another use, would be inside of china cabinets and the like, again
small, low power (10-20w) lights.