Adafruit Diffused RGB 5mm LEDs with separate red, green and blue LED chips inside. These LEDs are great for using as indicators in your projects. These LEDs have 60 degree viewing angle. These diffused RGB LEDs are great because they color mix inside instead of appearing as 3 distinct LEDs.
Adafruit Diffused RGB 5mm LEDs are Common-Anode type which means you connect one pin to 5V or so and then tie the other three legs to ground through a resistor. Generally multi-LED driver chips such as TLC5940/TLC5941 are often designed exclusively for common-anode and cannot be used with common-cathode. Therefore these LEDs are designed to be common anode to be suitable for use with these multi-LED driver chips.
Note: The pack contains 25 diffused RGB 5mm LEDs
Adafruit Learn Link: https://learn.adafruit.com/all-about-leds
Adafruit Product Page: https://www.adafruit.com/products/302