Using this 20mm red 7-segment display is easy. First, connect it properly according to the datasheet to ensure the forward voltage of 1.9VDC and don't exceed the max forward current of 20mA. You can place it in a well - lit area where you need to view the digits from a distance. When it comes to maintenance, keep it clean by gently wiping it with a soft, dry cloth. Avoid exposing it to excessive heat or moisture as this can damage the LEDs. If you notice any issues, refer to the datasheet or contact our support team.