Using this Mini Red Illuminated Momentary Pushbutton is easy. First, snap the button onto your breadboard as it's about the same size as 6mm tactile switches. You can then use it to add a tactile function to your project. To make the built - in LED light up, you'll need to connect an about 1K resistor to it and control it with a microcontroller pin or other device. Remember, this is a momentary button, so it only works when you press it. The LED is not connected to the switch, so you have full control over when it lights up. When it comes to maintenance, keep it clean and dry. If you're not using it for a long time, store it in a safe place. And be careful when handling the pins to avoid bending them.