Reviews Description: Contains 10 Diffused Reds, 10 Diffused Yellows, 10 Diffused Greens, 10 Diffused Blues and 10 Diffused Whites. These light-emitting diodes work well for a wide variety of applications including Arduino projects. Comes with some resistors for connection. Forward Voltages are Red and Yellow 1.9-2.0V, Green: 3.0-3.2V, Blue: 3.0-3.1V and White: 3.0-3.2V. Packaged in a resealable zip lock bag for your ease of use.