This board is a step up from our Happy, Angry, Chilly, and Surprising boards, featuring more LEDs and resistors! 

The radiant rainbow has the most LEDs out of all our weather boards with 11 LEDs (flashing red, yellow, green, and blue). Instead of using just one CR2032 battery at 3V, it has included 2 CR2016 batteries that you stack (place in series) to create 6V and ensure that all the colors are bright and stay blinking for many hours! The purple solder mask combines with the red, yellow, green, and blue LEDs to create an almost full rainbow. Soldering and tools required.

Instructions