Hello i have recently bourght 3 bathroom low voltage downlights that i wish to run led lights within these what transformer will i need?
thanks Lee

There is a lot of LED discussion in the forum, find through index/electrical/lighting and then search, for both the LED and cautions/regulations for fitting lights in bathrooms.
The Experts will advise, but give more info, are you replacing 3 existing lights?
Are they GU10 or MR16 lamps in your downlights?
In general LED's last longer with Constant current drivers, rather than the electronic transformers used for halogen spots.