For white light, however, two or more wavelengths are required to generate a broad spectrum of light ... instead a short-wavelength ultraviolet, violet or blue LED is required.

Fortunately, a UV lamp helps ... the problem with the LED lamps (which you may have seen marketed as "better for you") is that they can radiate light that's on the UVA spectrum, which still ...

However, housing facilities are often optimized for mammals and contain no ultraviolet (UV) light. Unlike mammals, most birds are tetrachromatic, meaning that they can see in both the visible and ...