Up to 30 different colors in any single pattern, with up to 90 bulbs of each color. So you could run 90 red, 15 orange, 5 white, etc. — the rule is 90 max per color, 30 different colors total. For most Middle Tennessee homes (200–400 linear feet of roofline) that’s plenty. Our most complex Tennessee scene to date: a Williamson County Christmas display running 7 simultaneous colors with chase patterns across a 4-gable roofline.