if you have one of those on off units you just need a suitable led driver that is connected through it. or did i get you wrong? cheers, JC 2013/1/10 Carl Denk > locally. We use the X-10 to turn on/off lights around the house for > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .