Jump to content

  •  

Photo
- - - - -

cfl from seedlings to flowers


  • Please log in to reply
22 replies to this topic

#1 antmaster

antmaster

    Mild

  • Members
  • Pip
  • 36 posts
  • Location:christchurch new zealand

Posted 26 February 2012 - 04:41 AM

how many lights? how big?
to grow 4 plants indoors all the time i was thinking on getting 2x 125w cfl 6500k and 2x 125w cfl 2700k will this work or will i need more or bigger bulbs

#2 theghostpepperstore

theghostpepperstore

    Smokin' Hot

  • Members
  • PipPipPipPip
  • 1,696 posts
  • Location:St. Louis

Posted 26 February 2012 - 08:26 AM

We are going to need some details about the lights, mainly lumen output. Also, how big is the room you are growing in? AJ has some magic math he can do to tell you whether or not it will work well. I haven't had any coffee yet so no math for me.
Please, do not feed the trolls!

#3 antmaster

antmaster

    Mild

  • Members
  • Pip
  • 36 posts
  • Location:christchurch new zealand

Posted 26 February 2012 - 04:56 PM

8000 lumens each so 32000 all up and

2' 7 2/10" w by 1' 4 1/10" d by 5' 11 1/10 h

792mm w by 409mm d by 1805mm h

Edited by antmaster, 26 February 2012 - 04:57 PM.


#4 theghostpepperstore

theghostpepperstore

    Smokin' Hot

  • Members
  • PipPipPipPip
  • 1,696 posts
  • Location:St. Louis

Posted 27 February 2012 - 08:47 AM

Well then you are at about 3.5 sq feet with 32000 lumens, so just over 9000 lumens/sq ft. I think the minimum for fruiting is something like 3000 lumens/sq ft so I would definitely think it is possible in your setup, however the space sounds awfully small for 4 plants of fruiting size.
Please, do not feed the trolls!

#5 Datil Patch

Datil Patch

    Hot

  • Members
  • PipPipPip
  • 666 posts
  • Location:On the beach, NorEast Florida

Posted 27 February 2012 - 11:37 AM

You don't need 2700k lamps unless you are growing an herb type product. Peppers grow best with full spectrum light. They are not photoperiodical. Use 6500K lamps in all the fixtures. Don't forget a fan, even CFLs produce heat.
Step into some ZooPoo! ZOOPOO!
Datils, Datils and more Datils!

#6 3/5King

3/5King

    Smokin' Hot

  • Members
  • PipPipPipPip
  • 2,299 posts
  • Location:Wauconda Illinois
  • (x1)

Posted 27 February 2012 - 02:56 PM

6500k is good for vegetative growth 2700k is necessary for flowering your plants. 3000 lumens a square foot of growing space is a minimum number for growing to maturity indoors. If you have anything above 3000 lumens a square foot you are doing great. Although when it comes time to flower (if you still have 9000 lumens a sqft) you will want to dial back the amount of lumens you have and switch to the 2700k. In the summertime the sun puts off roughly 10000 lumens a sqft, when end of summer/fall comes around the angle of the sun changes, as well as the spectrum of light it gives off and the amount of lumens a sqft.

The grow space does sound awfully small. Even if yo were growing just one plant. Seeing as plants can get over two feet wide and that is an all around width. So unless you are planning on stunting their growth to keep them within a specific size...then I would think about expanding your grow area. Even for one plant I would want at least a 3ft circumference. Taking a picture of the grow area might help us get a better idea of what you are working with.

"Take this quarter, go downtown, and have a rat gnaw that thing off your face! Good day to you, madam.”

"What man can conceive and believe, man can achieve"

#7 millworkman

millworkman

    On Fire!

  • Moderators
  • 7,335 posts
  • Location:Knoxville, TN, USA

Posted 27 February 2012 - 03:38 PM

6500k is good for vegetative growth 2700k is necessary for flowering your plants.


Not true at all. Healthy pepper plants can be grown from seed to flowering and fruiting under 6500k and 5000k lights with ease.

#8 Datil Patch

Datil Patch

    Hot

  • Members
  • PipPipPip
  • 666 posts
  • Location:On the beach, NorEast Florida

Posted 27 February 2012 - 03:46 PM

6500k is good for vegetative growth 2700k is necessary for flowering your plants.


Peppers are not photoperiod depandant. They veg and bloom simultaneously. They will do best under full spectrum daylight lamps.
Step into some ZooPoo! ZOOPOO!
Datils, Datils and more Datils!

#9 3/5King

3/5King

    Smokin' Hot

  • Members
  • PipPipPipPip
  • 2,299 posts
  • Location:Wauconda Illinois
  • (x1)

Posted 27 February 2012 - 03:58 PM

Peppers are not photoperiod depandant. They veg and bloom simultaneously. They will do best under full spectrum daylight lamps.


Photoperiodism has nothing to do with the spectrum of light it receives. Photoperiodism is how much light/complete darkness a plant gets in a day/night cycle in relation to it's flowering habits.

Edited by 3/5King, 27 February 2012 - 03:59 PM.

"Take this quarter, go downtown, and have a rat gnaw that thing off your face! Good day to you, madam.”

"What man can conceive and believe, man can achieve"

#10 MGOLD86

MGOLD86

    Smokin' Hot

  • Members
  • PipPipPipPip
  • 3,196 posts
  • Location:NC

Posted 27 February 2012 - 04:08 PM

Ill let you guys discuss the math and ill just add the fact that you will not be able to grow four plants to maturity and produce pods in that space. One plant, ill take it, but 2 would be smooshed together, and 3 or more is not possible. Well, it may be possible, but, no, not possible. lol.

I was thinking about the size of even a 3 gal pot in relation to the area and you would have 4, 3 gal pots right next to each other. The plants don't grow within the diameter of a pot, they are gonna branch out and fill in.

Either way, good luck, but I would try to get more space...

Stop asking and just eat it!


#11 stc3248

stc3248

    On Fire!

  • Members
  • PipPipPipPipPip
  • 5,865 posts
  • Location:Poway, Ca
  • (x1)

Posted 27 February 2012 - 04:33 PM

Ill let you guys discuss the math and ill just add the fact that you will not be able to grow four plants to maturity and produce pods in that space. One plant, ill take it, but 2 would be smooshed together, and 3 or more is not possible. Well, it may be possible, but, no, not possible. lol. I was thinking about the size of even a 3 gal pot in relation to the area and you would have 4, 3 gal pots right next to each other. The plants don't grow within the diameter of a pot, they are gonna branch out and fill in. Either way, good luck, but I would try to get more space...


Exactly what I was thinking...even if you did get them all in there and growing you would not be able to penetrate the cannopy with your lights. If you placed some more lights down low that would help, but I still think it would be too dense to get light everywhere it needs to be for healthy productive plants.

I am no indoor expert though...so I would definately hit up those that are.

Good luck!
Shane

stc3248's 2014 grow log
www.imarunnut.blogspot.com/


#12 antmaster

antmaster

    Mild

  • Members
  • Pip
  • 36 posts
  • Location:christchurch new zealand

Posted 27 February 2012 - 05:17 PM

have i got the lighting power to double the withd or what size do you think ive got the lights just need to make that cabinet or grow room have a single garage thats joint to the house and under the same roof if that makes sense.
just wanted to no how small i can go or an eg of a good sized room cabinet

should i just put them on a bench and put the lights up will that work with maybe a film of some kind to reflect light

#13 stc3248

stc3248

    On Fire!

  • Members
  • PipPipPipPipPip
  • 5,865 posts
  • Location:Poway, Ca
  • (x1)

Posted 27 February 2012 - 05:37 PM

What type of plants? Look up the recommended spacing for them and go from there. You can probably get away with crowding them a little but not too much. You could always keep them a stunted in smaller pots to keep them smaller, but production would also suffer. I think you will definately need more lights. While the 4 you have listed put out plenty of lumens per square foot...with only 4 (1 per plant) you won't be able to spread the light around enough to actually use all those lumens. You could place each high powered bulb avove a plant then use some smaller/cheaper bulbs to try to get better coverage.

The 4 bulbs and space you have will get you started (and very well at that), and through maybe a couple months of growing then you can try to gage and add lights and space as necessary.

Shane

Remember also that CFL's are great grow lights, but their intensity drops off pretty quick as distance increases from the source. Their lumen output is usually measured at 1 ft (I think) and drops off after that.

stc3248's 2014 grow log
www.imarunnut.blogspot.com/


#14 antmaster

antmaster

    Mild

  • Members
  • Pip
  • 36 posts
  • Location:christchurch new zealand

Posted 27 February 2012 - 05:48 PM

there is a old tin shed next door i was thinking of grabing that as its a abandoned house due for demo as the earthquake damaged it its about 1400mm x 1400mm x about 2000mm high will this do

#15 Datil Patch

Datil Patch

    Hot

  • Members
  • PipPipPip
  • 666 posts
  • Location:On the beach, NorEast Florida

Posted 28 February 2012 - 04:55 PM

Photoperiodism has nothing to do with the spectrum of light it receives. Photoperiodism is how much light/complete darkness a plant gets in a day/night cycle in relation to it's flowering habits.


Photoperiodism is spectrum dependant because both short-day and long-day period plants produce phytochromes which absorb red spectra light and are converted to a different form. The phytochromes revert or are changed back to their previous state during the night cycle. The amount of a particular phytochrome present regulates blooming in photoperiod plants. Only photoperiod plants, because of the production of phytochromes, take advantage of having enhanced red spectra lighting.

Peppers are day-neutral and are not dependant on phytochrome conversion to initiate blooming so they would not take advantage having red spectra lamps to make them bloom.
Step into some ZooPoo! ZOOPOO!
Datils, Datils and more Datils!

#16 stc3248

stc3248

    On Fire!

  • Members
  • PipPipPipPipPip
  • 5,865 posts
  • Location:Poway, Ca
  • (x1)

Posted 28 February 2012 - 07:52 PM

there is a old tin shed next door i was thinking of grabing that as its a abandoned house due for demo as the earthquake damaged it its about 1400mm x 1400mm x about 2000mm high will this do


Doing the conversion in my head that is just shy of 5 feet x 5 feet x 6 feet tall. Yes that would be about right for 4 fairly large pepper plants. You will need many more lights....

stc3248's 2014 grow log
www.imarunnut.blogspot.com/


#17 MGOLD86

MGOLD86

    Smokin' Hot

  • Members
  • PipPipPipPip
  • 3,196 posts
  • Location:NC

Posted 28 February 2012 - 08:41 PM

Do a quick search on some DIY CFL Fixtures. It may work out for you to build a few fixtures for under a hundred bucks (about 120 NZ, I think).

Or you may find a MH/HPS combo for less that would work out great for the veg/fruiting in that space...

Stop asking and just eat it!


#18 willard3

willard3

    Smokin' Hot

  • Members
  • PipPipPipPip
  • 2,283 posts

Posted 29 February 2012 - 11:04 AM

http://www.thehotpep...icle-light-101/
Santa Maria Ahuacatitlan, Cuernavaca, Morelos, Mexico

"When governments fear the people there is liberty. When the people fear the government there is tyranny." - Thomas Jefferson

#19 stc3248

stc3248

    On Fire!

  • Members
  • PipPipPipPipPip
  • 5,865 posts
  • Location:Poway, Ca
  • (x1)

Posted 29 February 2012 - 11:55 AM

http://www.thehotpep...icle-light-101/


Willard...I really like that thread, it is great info and I have read it several times. What it fails to do is give you the basic requirments. IE How many lumens per square ft, how high the light source should be above the plant, how light height affects lumen intensity at the plants, what color spectrum works best for pepper plants specifically during vegetative/fruiting...or both, setup for multi bulb systems....it is a great explanation of how plants use light, but not how to give plants light they can use.

I understand that its easy to get irritated when the same questions get asked over and over by different members, and if a great thread that will enLIGHTen (hahaha) them is available I'm all for the "I'm just going to post a link because I think you didn't try hard enough to find it." type post but not without the added "Hey how ya doing? Here is a great thread that I think might help you out!" dialogue included...

Shane

stc3248's 2014 grow log
www.imarunnut.blogspot.com/


#20 mrz1988

mrz1988

    Heating Up

  • Members
  • PipPip
  • 439 posts
  • Location:Connecticut, USA

Posted 01 March 2012 - 09:19 PM

I'm curious as to whether or not the plants utilize more of one spectrum during flower or not, does anyone have a source saying that the plants do best using the same spectrum year round? I always heard that red light helps flower a bit better for all plants whether or not they veg and bloom simultaneously but I haven't seen it in a scientific source. I've been using half 6500K and half 2700K because I think it gives the best spectrum range and the light looks about as close in color to daylight as you can get.
Matt
Your friendly, young science freak




1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users