Using this pushbutton is a breeze. Just press it to turn it on and press again to turn it off for basic On/Off functions. When connecting, use the small solder lugs at the back and make sure to follow the correct polarity. Regarding voltage, check the branding on the button to ensure it matches your power source as the LED operates between 5 - 12V and the button can handle up to 3A and 250VAC. Since it has an IP65 weatherproof rating, it can be used in outdoor or damp environments, but avoid submerging it completely. For maintenance, keep it clean by using a dry or slightly damp cloth. If you notice any damage to the solder lugs or the LED, stop using it immediately and consult a professional.