Wavelengths and Voltages LED Values Color Wavelength(nm) Voltage(V) Current(mA) Red 620-630 1.8-2.3 20 Yellow 580-590 1.8-2.3 20 Green 520-530 2.8-3.6 20 White 610-620 2.8-3.6 20 Blue 460-470 2.8-3.6 20