That's the problem I have. All of my exterior lights are X10-controlled. I would love to replace my ancient X10 modules and controllers, but the new tech is ridiculously over-priced. My 1984 computer had 64 KB of RAM and cost more than my current 16 GB PC. So why is the 30-years newer stuff so obscenely priced? Just to replace the X10 modules I have to control my Christmas lights would cost me close to a $1000. Nope.