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OfflineTheMantis
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Registered: 05/23/08
Posts: 97
Loc: Bay Area, California
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CFL's or Fluorescent Grow tubes?
    #44508 - 06/01/08 12:42 AM (8 years, 6 months ago)

Which do you prefer? The CFL's seem to have a greater impact.


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Offlineerb
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Registered: 04/20/08
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Re: CFL's or Fluorescent Grow tubes? [Re: TheMantis]
    #44553 - 06/01/08 01:20 AM (8 years, 6 months ago)

i prefer fluorescents for clone and seedlings, they stretch the light over a larger area.

Cfl's are a little better for budding, with a higher light intensity.


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OfflineTheMantis
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Re: CFL's or Fluorescent Grow tubes? [Re: erb]
    #44581 - 06/01/08 01:31 AM (8 years, 6 months ago)

The CFL's seem perfect for seedlings but I'm still very new at this.

The plants are actually leaning towards the CFL lights. Plus I've noticed a small increase in growth-pace.


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OfflineTheMantis
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Re: CFL's or Fluorescent Grow tubes? [Re: TheMantis]
    #44594 - 06/01/08 01:35 AM (8 years, 6 months ago)

Kudos on using the cd's to reflect light.  :greenthumb:

Where did you come up with that idea. It seams so obvious now.


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OfflineSirius
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Registered: 04/20/08
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Re: CFL's or Fluorescent Grow tubes? (moved)
    #44711 - 06/01/08 04:34 AM (8 years, 6 months ago)

This thread was moved from Indoor Soil Cultivation.

Reason:
More appropriate for the general forum as it is a topic not specifically related to soil.


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Offlineerb
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Re: CFL's or Fluorescent Grow tubes? [Re: TheMantis]
    #45995 - 06/01/08 08:41 AM (8 years, 6 months ago)

thanks Mantis!
The idea just kinda hit me one day.
maybe in a few years alot of people will be doing this!
yay!


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OfflineGanoderma
Registered: 06/11/08
Posts: 28
Last seen: 8 years, 1 month
Re: CFL's or Fluorescent Grow tubes? [Re: erb]
    #61114 - 06/19/08 11:56 AM (8 years, 5 months ago)

what kind of CFL do you use for flowering?  watt/lumen/colour?


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OfflineSiekostoner
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Re: CFL's or Fluorescent Grow tubes? [Re: Ganoderma]
    #61182 - 06/19/08 01:12 PM (8 years, 5 months ago)

I'm using a 150 watt CFL bulb for my single plant, and it seems to love it. It's not stretching the least bit, and has actually become much more bushy than I expected... I don't have the time or money to invest in HPS lighting or anything like that. I'm trying to keep it small and compact, and it's working very well.


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OfflineAnnom
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Re: CFL's or Fluorescent Grow tubes? [Re: TheMantis]
    #61191 - 06/19/08 01:19 PM (8 years, 5 months ago)

CFLs are just small fluorescent tubes. The only difference it the size.

If you have one small plant, CFLs work better because the light is more concentrated compared to the same power fluorescent tube.

If you have the complete enclosed grow area covered with plants/leaves, I would prefer fluorescent tubes because they provide a homogeneous lightning and temperature.



I've always seen better results with HPS/HID though.


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OfflineSirius
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Re: CFL's or Fluorescent Grow tubes? [Re: Ganoderma]
    #62180 - 06/20/08 07:35 AM (8 years, 5 months ago)

Quote:

Ganoderma said:
what kind of CFL do you use for flowering?  watt/lumen/colour?




You'll want soft white CFL's for flowering, which is the color temperature 2700k. From what I've read, you'll minimally look for 2000 lumens per square foot, so look for at least that. The bulb should list the lumens produced, but I think around 24 watts is where you'd begin looking (for around 2000 lumens per bulb). Most of the light comes off the sides, so use them in a horizontal position (unless you are putting them vertically between plants). They aren't anywhere near as intense as HID lighting would be, so the light won't penetrate too deep. You'd want to have them at least four inches away, but not too close or they'll burn the plant (I think fluorescent tubes can touch without burning). If you have any shadows, you don't have enough light in that area.


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OfflineAnnom
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Re: CFL's or Fluorescent Grow tubes? [Re: Sirius]
    #62199 - 06/20/08 08:53 AM (8 years, 5 months ago)

Quote:

(I think fluorescent tubes can touch without burning)




No, see bottom left and right plants in the next pic:


That's because the leaves touched the tubes. The temperature and conductance is too high and the leaves dry out ("burn") completely.

The rest you said was correct though :grin:


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Invisiblemel_lonta_tauda
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Re: CFL's or Fluorescent Grow tubes? [Re: Annom]
    #62203 - 06/20/08 09:27 AM (8 years, 5 months ago)

Quote:

Annom said:
Quote:

(I think fluorescent tubes can touch without burning)




No, see bottom left and right plants in the next pic:


That's because the leaves touched the tubes. The temperature and conductance is too high and the leaves dry out ("burn") completely.

The rest you said was correct though :grin:




nice treeeez :drooling:


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OfflineSirius
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Re: CFL's or Fluorescent Grow tubes? [Re: Annom]
    #62207 - 06/20/08 09:31 AM (8 years, 5 months ago)

Yeah, its just what I read somewhere while I was reminding myself which color temperature the cool white was. :lol:


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OfflineGanoderma
Registered: 06/11/08
Posts: 28
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Re: CFL's or Fluorescent Grow tubes? [Re: Sirius]
    #62220 - 06/20/08 10:18 AM (8 years, 5 months ago)

awesome thanks.

most CFL bulbs i see are aroun 51-60 L/w, but i use 70L/W here.  so 2000/70 is 29 watts, roughly.  that seems pretty little.  the CFL bulbs i usually buy are 31 watts, so i guess they are pretty good if i use say 3 per square foot?

65 watt cfl bulbs here are 65L/W, 4225 Lumens total.  If i used say 6 of those fr only 5 clones, think this would be adequate?  using reflecting walls in a box.

your help is greatly appreciated, more than i can express through a keyboard!


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OfflineSirius
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Re: CFL's or Fluorescent Grow tubes? [Re: Ganoderma]
    #62222 - 06/20/08 10:38 AM (8 years, 5 months ago)

Quote:

Ganoderma said:
most CFL bulbs i see are aroun 51-60 L/w, but i use 70L/W here.  so 2000/70 is 29 watts, roughly.  that seems pretty little.  the CFL bulbs i usually buy are 31 watts, so i guess they are pretty good if i use say 3 per square foot?




Do you mean three bulbs for every square foot, or three bulbs, one for each square foot? :strokebeard:

Quote:


65 watt cfl bulbs here are 65L/W, 4225 Lumens total.  If i used say 6 of those fr only 5 clones, think this would be adequate?  using reflecting walls in a box.




It sounds like it should be great.


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OfflineGanoderma
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Re: CFL's or Fluorescent Grow tubes? [Re: Sirius]
    #62327 - 06/20/08 02:07 PM (8 years, 5 months ago)

3 bulbs in 1 square foot.


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OfflineEleutherios

Registered: 07/06/08
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Re: CFL's or Fluorescent Grow tubes? [Re: TheMantis]
    #73252 - 07/06/08 01:11 AM (8 years, 5 months ago)

I have a friend of a friend who was looking to do a small grow. They were planning to use a 105watt compact flouro for veg with a few bonsai mothers. They were going to get a good lining to go around the perimeter of the chamber. Would this be adequate?


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Invisiblecoda


Registered: 04/20/08
Posts: 4,734
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Re: CFL's or Fluorescent Grow tubes? [Re: Eleutherios]
    #73323 - 07/06/08 02:23 AM (8 years, 5 months ago)

depends on how big of an area you're trying to light.


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MFDoom666: sobriety kills my buzz every time.


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OfflineEleutherios

Registered: 07/06/08
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Re: CFL's or Fluorescent Grow tubes? [Re: coda]
    #73654 - 07/06/08 03:29 PM (8 years, 5 months ago)

Compact fri. I have to go to work in a min so I don't have time to find my tape measure. Butabout 1 1/2 ft x 1 1/2 ft. Just personal you know.


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Invisiblecaptain.koons
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Registered: 06/25/08
Posts: 6,163
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Re: CFL's or Fluorescent Grow tubes? [Re: Eleutherios]
    #73668 - 07/06/08 03:47 PM (8 years, 5 months ago)

im going with 125/200w cfl's for cloning and vegging


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