Standard sized diffused T1-3/4 LEDs, great for indicators. Available in green, red, yellow, white and blue.
There's always a need for a nice, diffused tinted LED as an indicator. These 5mm (T1-3/4 LEDs) are the same as we use in many of our kits.
These LEDs have a nominal working current of 20mA, with a maximum rating of 30mA continuous and 150mA pulse (1/10 duty cycle @ 1kHz). They are still quite visible with only 5mA.