Bruce Paipech of Geneva, Ill., started his Christmas light tradition in 2006 to brighten up the holidays and make memories for neighbors, families, and especially children. In 2010, he went digital. This year’s show is made possible with 9 miles of lights (over 100,000 bulbs!) and 4 miles of cords. Music is programmed into the sequencer, and the lights illuminate in sync with the holiday tune. But that’s not all. When Paipech noticed that the LED lights vastly improved in color, he switched over. Now he runs the whole program on less than 20 amps of power, whereas traditional incandescent bulbs would have required a separate electrical service.