What Details Should We Use to Select the Masks We Need
LED Basics Our eyes are able to see colors with wavelengths between 380 and 750 nanometers. The different colors we see from an LED mask are actually emissions of different wavelengths. Red has the longest wavelength, while violet has the shortest. The wavelength of ultraviolet light is shorter than that of violet light. Similarly, the wavelength of infrared light is longer than that of red light. They affect our skin, but we cannot see them. Think of wavelength (measured by the distance between each wave crest) like an ocean wave, which can be huge and fast like a tsunami-level wave (high frequency, low wavelength) or gentle and slow like ripples […]