08:02PM | 11/16/08
Member Since: 11/16/08
1 lifetime posts
I am looking to put a series of low-voltage recessed lamps and I was wondering if I needed a transformer for each light or can you just get one transformer for all lights?


10:50PM | 11/16/08
Member Since: 01/09/07
198 lifetime posts
It can work either way. Do whatever is cheapest & easiest for you to do.

One cost difference is buying lots of transformers vs. one (bigger) transformer. You just need to make sure that if you use one it has a big enough capacity to handle all the lights.

Another possible cost differential is heavier-duty wires required for a lower voltage, but I think that's only theoretical -- for the wattage of a few lights it isn't likely to matter, and you would just use normal #14 or #12 wire throughout the project. (And that's a real advantage if someday in the future you want to change the type of lights -- you don't have to go inside the walls to replace wiring.)


04:24AM | 11/17/08
Member Since: 04/25/05
1915 lifetime posts
Also if you use a common transformer you need a location to put it that is accessible. That means no tools other than a screw driver.

Depending on the home design there may or may not be places to put a separate transformer without lots of work.
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