A range of bright yellow-green 5mm LEDs with viewing angles from 20 to 56 degrees supplied in a popular T1-3/4 diameter package, the most commonly chosen type of LEDs. Great for all scientific and industrial applications (instruments, control, communication) and most consumer-electronic modifications. The LEDs are available in AlInGaP/GaAs die – technology. Crystal clear. The cathode is denoted by the shortest leg.