So you know the exercise. Love Christmas lights but hate turning them on every day. This remote control device eliminates that. Christmas tree, server lights, windshield and mini tree. bam! Now they can all be recorded easily. Comes pre-programmed and numbered on the back of each device, so plug in and boom. Everything is ready. Just note that they are grounded so you need 3 pin sockets. Therefore, adapters are needed in older homes. But a great product for Christmas decoration. It took about 3 minutes to connect everything. add to the original rating. This set comes with 4 adapters but has 5 on/off buttons on the remote control. The company makes extra plugs for outlets that can be easily added as the 5th on the remote control in this kit. I made it myself in minutes.