LED Measurements

3 LED Tests -

Red - 1.67 V
Green - 1.74 V
Blue - 2.37 V

5mm LEDs -

Manufacturer: Sparkfun
Color: Red
Resistance Needed: 188Ω

Manufacturer: PC Board
Color: Ultra-Bright Purple
Resistance Needed: 100Ω

Manufacturer: Cree
Color: Blue
Resistance Needed: 160Ω

Manufacturer: Dialight
Color: Yellow
Resistance Needed: 150Ω

Manufacturer: Superbrightleds
Color: Red
Resistance Needed: 140Ω