Using this 10 - segment pure green LED light bar graph display is a breeze. First, find a suitable breadboard and gently plug the display into it. Make sure to align the pins correctly as there are 20 pins, 10 on each side, with 0.1' spacing. You can connect the wiring easily with the extra space available. You can either refer to the playground article about bargraph displays for inspiration or treat each LED as a single one and control them individually. When handling the display, be gentle to avoid damaging the LEDs or the plastic body. Keep it away from excessive heat and moisture. To clean it, use a soft, dry cloth. If you notice any issues, check the connections first. With proper care, this display will provide you with a long - lasting and vivid pure - green glow.