PhilC wrote:

In the interest of fuel saving could there be any saving in having a 12v
lighting circuit? Using maybe one or two larger transformers and the
equivalent of a mains lighting circuit or would the cost not be justifiable?
This being in addition to the normal mains circuit.

On a similar topic because transformers become warm, is there significant
electricity use when on standby?

PhilC

12v halogens are more efficient than mains halogens, but 12v CFLs are
much more effieicnt than either, and 12v CFLs cost more and are a bit
less efficient than 240. So no, theres nothing to gain.

CFl or linear fl are the energy saving options.

There would be savings if you had a LV system that you could plug small
appliances into, to replace wall warts, but the savings would be too
small to be worth installing a system for.


NT