by sparx »
Thu Apr 17, 2008 1:59 pm
Bit vague this,
Ballast inside fluorescent fitting, inside sodium street light, inside SON flood light? OR do you mean the transformer for low voltage lighting? in which case the size will depend on how far between trans. and lights as more than a few feet will need larger wiring to limit volt drop,
more info = more help,
regards SPARX