The color of
5161AS LED is different from the material used to make the LED, which can produce photons with different energies, thus controlling the wavelength of the light emitted by
5161AS LED, namely the spectrum or color. The first LED in history was made of gallium arsenide (As) (Ga), with a positive PN junction voltage drop (VF, which can be understood As lighting or working voltage) of 1.424v, and the light emitted was infrared spectrum. Another commonly used LED
5161AS material is phosphor (P) gallium carbide (Ga), whose positive pressure drop of PN junction is 2.261v, and the light emitted is green light. Typical ones include
5161AS red LED with gaas 0.6p0.4, orange LED with gaas 0.35p0.65, and yellow LED with Gaas 0.14p0.86.
http://www.xlitx.com/datasheet/5161AS.pdf
