This lamp is designed to function on 12 volts and will not work with 24 volts.. We have heard of customers with 24 volt systems being able to run 12 volt lines, but we do not know any details on how to do that.
We do not have any LEDs for the 5AG series lights, but we do have 3 different LED options for the AG series that can be combined with any of the 5 different bracket options.
http://www.unityusa.com/6-Decklight_p_1822.html