This is one of the easiest ways to add some color to your TinyDuino project. These crystal clear 3mm LEDs are already wired with a built in current limiting resistor, so all you need to do is solder the pre-tinned wires to a power source.
LED Diameter: 3mm
Wire Length: 20mm
Resistor Value: 510 Ohms
Operating Voltage: 3-12V
Current Draw: 10-30mA (Depending on color and supply voltage)