Datasheet

They come in packs of five with breakaway tabs-- you can separate them one at a time as you build your project.

Simply connect 3 to 6VDC to the + pin and ground to the - pin, and the LED on the board will light up. In the photo

above we've soldered alligator clips to a 2x2032 coincell battery holder (~6V). You could also use a single CR2032

sewable coincell holder-- you do not need a microcontroller to drive these sequins, unless you want them to blink or

fade.