Lighting
 

What is the difference between a 10,000K bulb and a 5,700k bulb?

http://www.sizes.com/units/color_temperature.htm

In short, color. It is actually the Kelvin temperature of the light that is given off from a bulb. The higher the kelvin rating the bluer the light, the lower the Kelvin the redder the light.

10,000k has a higher Kelvin (K) rating. It will emit a cooler, whiter light.

5,700k is more identical to the Sun's light, and won't be as white and crisp as 10,000k.

http://www.southbroadwaytropicals.co...s/JBJBulbs.htm

That is another site that explains the differences. All sites I have found said that 10,000K is a crisp blue light. What this means I am not sure but the ones I have seen used, like jouteiMike said, looked pretty crisp to me and brought out so pretty brilliant colors.

Thanks for the info. I have noticed that they do bring out some awsome colors. My Dwarf Gouramis look very nice under it.