8000K t5ho bulbs

hbosman

Guru Class Expert
Oct 22, 2008
277
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Leesburg VA USA
Probably not better. It's just a color preference. The Geismann bulbs are great and grow plants very well. The middays look too yellow to me and to some others as well. I would imagine that aquaflora and the midday in combination look much better and bring out the reds better.
 

barbarossa4122

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Dec 29, 2009
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NYC
hbosman;57618 said:
Probably not better. It's just a color preference. The Geismann bulbs are great and grow plants very well. The middays look too yellow to me and to some others as well. I would imagine that aquaflora and the midday in combination look much better and bring out the reds better.

Hi hbosman,

I have the midday/aquaflora combination right now but, I was thinking about the time when they need to be replaced. I was also thinking about the GE Starcoat 6500k b/c they are half the Geismann's price. My Geismanns are running for eight months now (8hrs/day).
 

Tug

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Jan 5, 2009
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Hi all,
Left C, It looks as if gla will be coming out with the fixture late November and the bulbs in December or earlier.

Thanks for providing a link to the OP barbarossa. Try the link again Left C, it worked for me.
 
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barbarossa4122

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Dec 29, 2009
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Tug;57946 said:
Hi all,
Left C, It looks as if gla will be coming out with the fixture late November and the bulbs in December or earlier.

Thanks for providing a link to the OP barbarossa. Try the link again Left C, it worked for me.

You welcome Tug.
 

waj8

Junior Poster
Nov 27, 2010
14
0
1
Windsor, Ontario
I use GE 6500K. I like them a lot. Sylvania also makes a very similar lamp. People make too much of the K value. It does not really say too much about the actual spectrum of the lamp.
 

shane

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Nov 29, 2006
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How often do you guys replace your t5ho giesemann bulbs? I just replaced mine after 2 years of use.