Yes, Jim, I agree LEDs would be the way to go. Unfortunately, I'm working for a little ol' lady who had a Malibu "system" put in. She had been charged as much for the Malibu (Intermatic) transformers as it should have cost for
professional transformers. I told her I couldn't do anything else with her setup until I replaced the transformers. She has enough halogens to load up a 600w in the front and another one in the back yard. So even with the savings of smaller transformers, I couldn't save her enough to retrofit all LEDs.
Starry Night Lighting
"Always look on the bright side of life."