Tropical Fish Keeping - Aquarium fish care and resources

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Jpet 09-16-2007 09:58 PM

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

fish_4_all 09-16-2007 10:09 PM

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.

JouteiMike 09-16-2007 10:10 PM

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.

fish_4_all 09-16-2007 10:21 PM

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.

Jpet 09-16-2007 10:30 PM

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

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