This set can be used for electronic and electrical experiment, and these light-emitting diodes work well for a wide variety of applications. Features: 5 assorted color LED light luminous diodes kit, 300pcs in total. Emitting light color: red, green, yellow, white, blue. It is great for electronic and electrical experiments. All 300pcs are packaged in a plastic case with individual compartment. Specifications: Quantity: 300pcs Emitting Light Color: Red, Green, Yellow, White, Blue Head Diameter: 3mm and 5mm (0.118" and 0.1968") 3mm Luminous Diodes: 40pcs Yellow, 40pcs Green, 40pcs Blue, 40pcs Red, 40pcs White 5mm Luminous Diodes: 20pcs Yellow, 20pcs Green, 20pcs Blue, 20pcs Red, 20pcs White Voltage: White: 3.2-3.4V; Green: 3.0-3.2V; Yellow: 2.0-2.2V; Blue: 3.2-3.4V; Red: 2-2.2V, Current: 20mA Case Size: 12.7 * 6.5 * 2.2cm / 5 * 2.56 * 0.86in Total Weight: 75g / 2.64oz Package List: 300 * Light Emitting Diodes