Instruct: Classify Amazon reviews into positive or negative sentiment
Query: X-10 great for window lights

We use these to control window lights. We have several controllers and can turn the lights off and on by pushing a single button. With the available timer, we also use this to turn individual lights off and on at random times for security purposes. Note these are what you plug the lights into and you need a controller to make it work.UPDATE: My neighbor has the same setup and over the holidays discovered that the X10 control modules do not work with LED Christmas lights.