Using these NeoPixel Clear 5mm Through-Hole LEDs is easy. First, power them with 5V. To connect them, chain them together by linking the Data-Out pin of one LED to the Data-In of the previous one. If you're using an Arduino, you can control them with our Neopixel library for Arduino. They also work well with Trinkets. Just remember, these LEDs are in 'RGB' format. Check the example code to change the colors automatically. As for maintenance, keep them away from extreme heat and moisture. Don't apply too much force to the pins as they can break. With proper care, these LEDs will keep shining bright for your projects.