Using this arcade button is easy. Just press the shiny green domed plastic cover, and you'll hear a satisfying 'beep' sound. To mount it, you can attach it to nearly any kind of enclosure. When it comes to the LED, if you want it to light up, you can connect it up to 12V since it has a built - in resistor. But remember, because of the button's size and depth, the light won't be evenly spread across the button face. As for the microswitch, it'll do its job when you press the button, closing the contacts. Now, here are some important things to note. This button isn't waterproof or weatherproof, so always use it indoors. Also, don't expose it to extreme temperatures or rough handling. For maintenance, you can gently clean the button with a soft, dry cloth. Avoid using harsh chemicals as they might damage the plastic cover or the LED.