Sorry, didn't notice it when I sent specifications; the secondary output is listed at 11.5 VACyes. Please describe them better. They might already be DC.
You can, but there are folks (your friends and family?) that could use these as-is since halogen lamps are still quite common. I could use a few of these myself. The halogen lighting kits they sell include lots of lamp but usually only one adapter.I have a number of electronic converters input 230VAC 50Hz 0.26A, output 11 .5 V 60W max (10 -60W) that were used to power 50W halogen lamps. Can I use these converters with some sort of rectification to power simple low voltage LEDs?