Can harmony touch work in country with 220 volt. Does it control the home theatre lights also

Hello,
Your Logitech remote should be able to work on a 220 volt system so ling as the AC adaptor that plugs between the wall and the charger is rated 110-220v. Unplug it from the wall an read what it says on the outside. In should say "Input 110-220v" to be safe to put on a 220 system. If it is only rated 110v input power, you may need to purchase a universal power adaptor in order to provide power to the charging cradle. Another solution is to buy a "power transformer" which is a box that plugs into the wall and steps down the voltage and provides an outlet that can be used to power multiple 110 devices. What ever you do, do not plug in a 110v only device into a 220v circuit. If you do, it will "fry" the electronics rendering them useless, but it could potentially even start a fire.

With regard to your lighting system, the Harmony will emulate just about any remote controlled system that uses an IR signal. You may just need to program that device into your remote. Since you will not always want lights on or off during a movie, I would teach the remote the the audio systems * key is the same IR command as your lighting system. That way you can control the lights at the push of a button, independent of that activity.