The Grove-Mech keycap is a mechanical switch with a build-in LED. The 255 full color RGB LED makes it simple and easy to show the statues of your switch. This keycap is very reliable with 20,000,000 times press operating life.
You will find that this is an interesting and stable module to make some really fun project or product. Actually, you even can make a mechanical keyboard using several Grove-Mech keycaps.