These incredibly small surface-mount LEDs are an easy way to add a lot of very tiny (but bright!) colorful dots to your project. They are just mind-bogglingly small. As they are pretty darn tiny, they might be a bit difficult to hand solder. SMT techniques with solder paste and hot air will work best here.
There are three LEDs inside, red green and blue. The RGB LEDs are controlled by a tiny chip that takes a 24-bit color level via the clock and data in and then does all the PWM control for you. So you just 'set' the color data once. Like any NeoPixels you can chain them together, the output of one leading into the input of another for near-infinitely long strips.
Comes in a strip of 10 pieces. If you order more than one strip, it will come as multiple strips of 10, not one long strip.