If you liked this instructable, consider checking out my new website www.TheSiliconJunkie.com You've probably seen all those videos where people make there christmas lights dance to music, you think to your self wow that looks realy cool.... i could never do that. WELL... you can the idea is actually quite simple. WHATS A RELAY? a relay is a component that can be used to control large amounts of voltage or current with just a small voltage, it does this by using that small voltage (5 volts in our case) to create a magnetic feild that will pull a switch type object to connect the larger current (120 volts in our case). Image 2 is a diagram on how a relay works
This is my actual kitchen: 12 ft Garland and white lights with apple ornaments and mini trees with gingerbread cookie theme ornaments on top of my kitchen cabinets. Controlled by remote or I can set it to a timer. We leave it up through Valentines Day because I love it so much.