Can LED lights that produce red lights contain or produce any far infrared ray that is invisible? - Quora
PLOS ONE: Red Light Combined with Blue Light Irradiation Regulates Proliferation and Apoptosis in Skin Keratinocytes in Combination with Low Concentrations of Curcumin
![led - How to generate Red light from a Blue-Dominated Spectrum - Electrical Engineering Stack Exchange led - How to generate Red light from a Blue-Dominated Spectrum - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/b7ach.png)
led - How to generate Red light from a Blue-Dominated Spectrum - Electrical Engineering Stack Exchange
![Light travels as waves of energy. Waves of light have different wavelengths (the distance between the top of one wave and the top of the next). Different colors of light have different wavelengths. Purple and blue light waves have short wavelengths. Red light ... Light travels as waves of energy. Waves of light have different wavelengths (the distance between the top of one wave and the top of the next). Different colors of light have different wavelengths. Purple and blue light waves have short wavelengths. Red light ...](https://www.windows2universe.org/physical_science/magnetism/images/visible_spectrum_waves_big.jpg)