Quote Originally Posted by Shovelhandle
Welcome Naturetong,

That is wonderful, I bet most of us have seen similar charts many times. Wavelengths in nanometers are not usually found on lighting devices outside of led. Most HID and florescent lamps list temperature (2700º K - 10,000ºK).
Can you explain how wavelength compares to the kelvin scale (Max Planck's quantum theory). Thank you.
lol