[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Index by Month]
[GSAS-Member] CFL bulbs
Shango, all I can tell you is that 10,000kelvin bulbs tend to have more
blue in their color spectrum. Blue penetrates further than red or
yellow. But plant growth is weak/ 'spindley' under blue light. The
6500-6700 bulbs have more red/yellow in spectrum. Weather kelvin and
wavelength are independent of each other I dont remember, maybe someone
else can speak to that. But if I were to buy one bulb for my freshwater
plant tanks I would buy the 6500-6700, more effective color spectrum.
Clay A.
On Thursday, October 22, 2009, at 08:24 AM,
gsas-member-request@thekrib.com wrote:
> So this discussion brings backs a topic I have yet to find a decent
> answer to. I get differing answers from every source.
>
> Most of my fixtures have room for two bulbs. I have bought one
> 10,000K so the tank looks good to my eyes and then the second bulb is
> 6700K so the plants thrive. I am not sure this is accurate though.
>
> Now, I am looking at buying this 6500K bulb. Why isn't it 6700K? If
> 6500K is better for plants, then why isn;' Coralife producing a 6500K
> bulb instead of 6700K?
>
> AND, if I only get one bulb in some of my fixtures, do I get the 6500
> over the 10,000 because it is a planted take?
>
> Can anyone give me some good perspective on this?
_______________________________________________
GSAS-Member mailing list
GSAS-Member@thekrib.com
http://lists.thekrib.com/mailman/listinfo/gsas-member