Difference between these bulbs?

[charlieB]

My question is in regards to the lights for my coralife biocube 29, the stock bulbs are PC bulbs, 1 36W 10k and 1 36W actinic. My current bulbs are about 4 months old, so I will be replacing them in a month or so and when I was looking at them online I found some similar bulbs and can't really tell what the functional difference between the two are. These are the bulbs that it comes with:

36W 10K PC Bulb

http://shop.mediabaskets.com/Coralife-36W-Actinic-Straight-Pin-PC-bulb-ES54081.htm


These are the other bulbs:

36W 12K PC-R

36W Actinic PC-R

The only obvious difference I can tell is that the stock white bulb is 10k and the other white bulb is 12k, but I'm not sure what effect, if any, that has on corals.

 

[Bifferwine]

It's just a different brand. The bulbs it comes with are Coralife brand, the other ones are UV Lighting brand. As for the color, 10K is a bit more white/yellow than 12K, which is a bit more blue. With an actinic bulb next to it, I'm not sure you'd even notice much of a difference, but if you think you'd like a more blue tint to your tank, try out the 12K.

 

[bjohanson1234]

The 12k will give the tank a blue tint. Some people like the look, others like the yellow look of a 10k. You just have to go by personal prefference.

 

[charlieB]

Thanks. I do like the blue look, would it be going overboard if I replaced the 10k white bulb with a 50/50 12k/actinic?