The Velleman MK100B Christmas Tree Minikit is the new version of the longtime favorite, Velleman MK100 minikit. This new version of the blinking Christmas tree uses 15 bright blue LEDs on a Christmas tree shaped printed circuit board and it has an on/off switch. The printed circuit board has a small hole on the top so you can hang it on your real Christmas tree or anywhere you want a little Christmas spirit. The DIY circuit operates on a 9V battery and includes a battery holder.








