I think people gives more importance than they should to the temperature ...

the way I see it:

if the CRI is higher than 75 then the temperature of the colour mean
something useful, if not then it's not useful.

one lamp might be on the 20000 kelvin, but with only a great spike in the
blue, and another not so great but still big on the red.
where is the green, yellow ?


"Tasslehoff" wrote in message
...
This is not a reply on the topic, but on the topic of lighting the Hagen
Aqua Glo tubes say 18000K but they look more in the red range of the
spectrum. Can anyone clarify this for me. Also I've got a 6500K tube
running on the same ballast which gives a sunlight type look to the tank,
is
this a good combo for the plants?

"350X_Rider" wrote in message
rthlink.net...
I got a AHSupply light kit, made a hood, looks great... so great that
I'm
deciding to play with the lighting...... the colors persay.... the 5300k
55w
that I have is pretty "yellow-white" and I'm looking for some ideas on
whether a 6400, or a 10k light would be more yellow or more white, or
just
too much... or could a Dark Blue bulb be good or ok or indifferent...

obviously, i'm new to lights, and the "concept" behind them, but I'm
open
and eager to learn...



--
350X_Rider
-------------------------
1992 TRX-350 XX
'98 Tacoma Ext Cab 4X4 Lifted....
ICQ:137012664
ø¤°`°¤ø,¸¸¸,ø¤°`°¤ø,¸¸¸,ø¤°`°¤ø,¸¸,ø¤°`°¤ø,¸¸¸,ø¤° `°¤ø,¸¸,ø¤°`°¤ø

"By US Code Title 47, Sec.227(a)(2)(B), a computer/modem/printer
meets the definition of a telephone fax machine. By Sec.227(b)(1)(C),
it is unlawful to send any unsolicited advertisement to such equipment.
By Sec.227(b)(3)(C), a violation of the aforementioned Section is
punishable by action to recover actual monetary loss, or $500,
whichever is greater, for each violation."

If you do send me unsolicited e-mail I will proof-read it at a rate
of $100 per hour (4 hour minimum).