Ultra Bright, Water Clear, Red, LED's Diameter:  3mm Red Intensity:  6000mcd Voltage:  1.9V - 2.2V Continuous Current:  20mA Ultra Bright, Water Clear, Blue, LED's Diameter:  3mm Intensity:  8000mcd Voltage:  3V - 3.6V Continuous Current:  20mA Yellow Diffused LED's Diameter:  3mm Voltage:  1.8V - 3V Continuous Current:  20mA Green Diffused LED's Diameter:  3mm Voltage:  3V - 3.6V Continuous Current:  20mA Red Diffused LED's     Diameter:  3mm Voltage:  1.9 - 2.1V Continuous Current:  20mA