Lighting - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 09-16-2007, 09:58 PM Thread Starter
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What is the difference between a 10,000K bulb and a 5,700k bulb?
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post #2 of 5 Old 09-16-2007, 10:09 PM
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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.
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post #3 of 5 Old 09-16-2007, 10:10 PM
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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.
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post #4 of 5 Old 09-16-2007, 10:21 PM
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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.
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post #5 of 5 Old 09-16-2007, 10:30 PM Thread Starter
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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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