Need some indicators? We are big fans of these diffused  LEDs. They are really bright so they can be seen in daytime, and from any angle. They go easily into a breadboard and will add that extra zing to your project.

The specifications vary by color:

Blue:

• 3mm diameter
• Blue: 465-470nm wavelength
• 3.0-3.4V Forward Voltage, at 20mA current
• 500 mcd typical brightness

Red:

• 3mm diameter
• 630-635nm wavelength
• 1.9-2.3V Forward Voltage, at 20mA current
• 100 mcd typical brightness

White:

• 3mm diameter
• 3.0-3.4V Forward Voltage, at 20mA current
• 500 mcd
• "Cool" white - 6500K