15 Nov
2005
15 Nov
'05
1:55 a.m.
Ken Seefried wrote:
From: "John Allain" <allain at
panix.com>
For many requirements like this (aquariums, hydroponics, etc), the
lighting of choice is high-Kelvin Metal-Halide lighting. With bulbs
over 150W, you can get 10,000 K bulbs, and at 175W and above, you can
get 14,000 K. Bulbs go to 1000W and more. All of these are very
bright & very, very blue-white.
Green Green . I want green! . The sun is green ... ears are pointed ...
>>>>>>> So given the choice, what lighting *is* good?
>>>>>>
>>
>
Natural white seems to be worse in traditional fluorescents, but newer
corrected bulbs are available.
Expensive stores and some art galleries like to use high temperature
point
sources, like 12V50w reflector lamps. They may be among the whitest,
and
can be used either in quantity for an almost daylight look, or
sparingly, to
allow the blinkenlights to be prominent.
If you are more interested in "natural
Sun-like" spectrum, there are
numerous choices in VHO florescent bulbs, again in the aquarium &
hydroponics world. These are *totally* different than the florescent
bulbs you get at the local hardware store.
Pretty much anything you get at, say, Home Depot, even the "aquarium
bulbs" or "grow bulbs", will be noticeably inferior from a spectrum
perspective. Stick to the hydroponic or aquarium stores.
Well all I got in Canada is the standard bulb fixtures. I got the screw
in florescent bulbs to save on power
but I don't like the color spectrum. I want daylight everywhere but I
can't change the fixures. Any Ideas?
Ken