Contains bags of 10 Clear Greens, 10 Clear Reds, 10 Clear Yellows , 10 Clear Blues, 10 Clear Whites and 10 Clear Pinks. These light-emitting diodes work well for Arduino projects. Comes with lots of resistors for connection. Forward Voltages are Clear Red and Clear Yellow 1.88-2.0V, Clear Green: 2.89-3.1V, Clear Blue, Clear White and Clear Pink: 3.0-3.2V. In a retail package glass box by GadgetMe Brands