I agree none of these small digital timers are safe to use for Lighting control. I know many use them for this but there not rated for this kind of use. I would rather be safe then sorry. The intermatic t104 is perfect for this kind of use.. If your handy you can make your own controller like I did. You can use the cheap digitalis to switch your relay/contactors. I'm using a woods 50009 to switch my contacts...