Quick Question

Sorry if this has been covered in a thread already, but I can't find a clear answer...

What are the Kelvin colors for 420nm and 460nm actintics. I'm thinking 20,000k and up. Does anyone know???

Thanks
Ames

 

anyone?

 

the spectrum is usually measured in nm, not K. I think you stumped us.

Daylight 10k are usually around 700nm

Awesome lighting site that goes into extreme detail....http://www.americanaquariumproducts.com/Aquarium_Lighting.html

 

I agree with above. the Actinic bulbs are usually not measured in Kelvin because they are narrow wavelength florescent bulbs. They focus on a particular wavelength to achieve only blue light such as 420nm

J

 

Thanks Guys,
I understand the nanometer wavelengths, but there must be some sort of Kelvin assignment to those actintic wavelenths. It seems the Kelvin temp and wavelengths are inverse, shorter the wavelength higher the kelvin.
For example, these numbers are approximates, Visible Red: 620-780nm and has a low Kelvin temp, Orange: 585 - 620nm 1500-2000K, Yellow: 570 - 585 nm 3000-4000k, From here on it becomes White and then "Cool White" Green: 490 - 570 nm, Blue: 440 - 490 nm, Indigo: 420 - 440 nm, Violet: 400 - 420 nm.
So to make a carbon block emit radiation 480nm down to UV around 400nm, it would have to be super excited and or hot.

Following that line of reason, could we assign a high Kelvin temp to 420-460nm specific aquarium light?