Our beautiful 5mm morphing lights will add the "wow" factor to any Christmas tree or wreath in red, yellow, purple, blue and white. While they are small, these lights will add stunning LED color wherever you put them and they are versatile enough for everyday use at birthday parties, most celebrations or Halloween. They may be used indoors or out. The morphing bulbs are placed every 4th bulb. There are 10 morphing bulbs and 40 warm white bulbs in this set.