Tutorial to Growing with Cfl's

myblackboy

New Member
Optimistic exports are expected to be able to drive the production of lighting business, but CFL can not be ignored that the European Union and the United States since implement new lighting standards and norms since last year, export enterprises must close variation for the latest standards for production. The implementation of the new standards is both a challenge and an opportunity, on the trend of the world, traditional light sources will be phased out, energy-saving lamps and LED are more environmentally friendly and accord with sustainable development, the new product have more plastic both in the design and application will be become the market leader.From 2012 onwards, the European Union banned all traditional light bulb wattage; Second, the U.S will disuse most incandescent lamps from January 2012 to January 2014 and replaced with compact fluorescent lamps, light emitting diodes and other energy lights; once again, by the end of March, South Korea raised safety standards of its straight tube which can be replaced, townhouses and ring type fluorescent lamp LED lamp
 

ii dP ii

Member
Anybody who is using a smaller area (like 2'Lx2'Wx4'H) with cfls how do you vent the heat? I'm thinking maybe a 6" inline fan and some flex duct to pull the excess heat out. Right now my babies are looking stressed and I need a good idea.
 

Sire Killem All

Well-Known Member
Anybody who is using a smaller area (like 2'Lx2'Wx4'H) with cfls how do you vent the heat? I'm thinking maybe a 6" inline fan and some flex duct to pull the excess heat out. Right now my babies are looking stressed and I need a good idea.
having simular problems in mine. It is jus about the size u describe. i seen a post on here were OP ran a 6" duct from his window A/C to his box. i'm going to try it and change my 80mm cpe exhuast for a 6" fan..... jus need to figure out the shadow box for it.
 
Anybody who is using a smaller area (like 2'Lx2'Wx4'H) with cfls how do you vent the heat? I'm thinking maybe a 6" inline fan and some flex duct to pull the excess heat out. Right now my babies are looking stressed and I need a good idea.
My grow box is 2' square x 3' tall, and I realized I had a heat problem pretty quick. (This is my first grow). The box is in my garage that nobody goes in but me, but it also has windows so I have to hide the light from the box. The garage is fairly cool, so I have a couple of tarps draped over it loosely which block (most of)* the light but allow some airflow. I was at HomeDepot yesterday looking at venting alternatives and saw a 4" inline vent fan for $27, which I could use with some 4" flexible clothes-drier vent line. My idea is to put vent-line/inline-fan high up on one side of the box to draw air and heat out, and put intake vent holes low on the other side of the box to bring in cooler fresh air.

Thoughts? Also, anybody know how loud those inline fans are?

*I was really surprised to find that the heavy duty poly tarps that are blue on one side and silver on the other are so shitty at blocking light! Even 2 layers isn't enough when you've got 12 23W CFLs going in a small space; it just gives the outer tarp a pretty "come look what's under me!" glow...:roll:
 

Rikouvian

Active Member
Hello I'm a noob and I would like a more specific answer to cfl lighting in a 2x2 area with 4 plants how many cfl will I need it seems like everybody has a different answer
 

PetFlora

Well-Known Member
This thread is 5 years old. Today you can buy Cree LEDs from Lowes/HD for ~ $13 that are non-toxic, do not require haz mat disposal, are recyclable and outgrow the living shit out of cfls. See captainmorgans all Cree grow
 

Jalil17

Member
Hey Dr.thanks so much for that tip I'm new and that's great info but I need to ask does the cfl from start to finish affect yield or should I not b concerned if I treat my babies right and water and feed properly. Need to know my first time out the gate don't want to b a bust.
 

B166ER420

Well-Known Member
This thread is 5 years old. Today you can buy Cree LEDs from Lowes/HD for ~ $13 that are non-toxic, do not require haz mat disposal, are recyclable and outgrow the living shit out of cfls. See captainmorgans all Cree grow
Lol...give it up!Cfls are waaayyyyyy cheaper than led's.$13 for one bulb.How many would I need to keep my perpetual 8 plant 12/12 grow??2.5x6x6 closet.If your gonna grow one plant,maybe.
 

B166ER420

Well-Known Member
Hello I'm a noob and I would like a more specific answer to cfl lighting in a 2x2 area with 4 plants how many cfl will I need it seems like everybody has a different answer
2x2 area needs at least 6 23w bulbs,5000k or 6500k for veg or until she starts to flower then 2700k or 3000k.
 

B166ER420

Well-Known Member
i am going to grow 18 plants in 3x 4 meter room.how many cfl lamps do you recommend?(l have to put them vertical)
You say....."I AM going to grow 18 plants in 3x4 meter room."..............You tell us how may your gonna use!:lol:
Seriously though,cfls are for smaller spaces.An area bigger than a 1mx2m,use hps/mh.
I have a 2ftx5ftx5ft closet space and I have 33-23watt cfls,plus 4-2ft t5s.....and I could use more:)GL.peace
 

B166ER420

Well-Known Member
Yes,that goes the same for autos.I would say start an auto on a 24/0 or 20/4 light schedule then go to a 18/6 for flowering....but ive never grown an auto:eyesmoke:...Btw.....10,000k-14,000k,actinic bulbs are higher uv and are for coral tanks and underwater plants they will work for growing but 6500,5000,3000 and 2700k are more specific to above water growing:).
Fluorescent_Bulb_Selection_Guide.pdf .....has a lot good info about lighting.GL.peace
 

giggywatts

Well-Known Member
have you used any of the bigger cfl bulbs, like the 48 and 55 watt bulbs?


You say....."I AM going to grow 18 plants in 3x4 meter room."..............You tell us how may your gonna use!:lol:
Seriously though,cfls are for smaller spaces.An area bigger than a 1mx2m,use hps/mh.
I have a 2ftx5ftx5ft closet space and I have 33-23watt cfls,plus 4-2ft t5s.....and I could use more:)GL.peace
 

B166ER420

Well-Known Member
have you used any of the bigger cfl bulbs, like the 48 and 55 watt bulbs?

What's going on giggy???:eyesmoke:
Only the 42w=150w,I had three of them and they burned out already and I couldn't put my hand on them either,too hot:(,that's why I just stick to the 23w or 26w bulbs.What are 48w and 55w equivalent to??
 

giggywatts

Well-Known Member
it may be 42, but it was 150 and the 55 is 200. yes they had some heat to them, if you touched it you knew it.
 
hey guys i gotta problem and didnt know where else to post so excuse me if this belongs somewhere else. so i decided to go to the cfl tutorial... i start my plants under 4 23w 6500k cfl's each 1450 lumens each but i veg with a 400w MH and my questions is how do i avoid light shock when moving from one to the other. i start by giving seeds a half hour of MH light a day at about 3-4 weeks old, next day an hour, day after 2 hours and so on just to get them acclimated but for some reason whenever i put them under for the 2 hour duration they get burned slightly and the leaves curls a little. room temp is normal though, no higher than 80 at the plants canopy (i know that isnt ideal but my propagation tray under the cfl gets about 88 so i know it isnt heat stress). how am i supposed to acclimate them to the MH im stumped :wall:
 

B166ER420

Well-Known Member
hey guys i gotta problem and didnt know where else to post so excuse me if this belongs somewhere else. so i decided to go to the cfl tutorial... i start my plants under 4 23w 6500k cfl's each 1450 lumens each but i veg with a 400w MH and my questions is how do i avoid light shock when moving from one to the other. i start by giving seeds a half hour of MH light a day at about 3-4 weeks old, next day an hour, day after 2 hours and so on just to get them acclimated but for some reason whenever i put them under for the 2 hour duration they get burned slightly and the leaves curls a little. room temp is normal though, no higher than 80 at the plants canopy (i know that isnt ideal but my propagation tray under the cfl gets about 88 so i know it isnt heat stress). how am i supposed to acclimate them to the MH im stumped :wall:
You got the right idea by hardening them off.Raise your mh higher.Patience friend, some strains are more easily affected by environment changes and it seems yours might be one.Put them under for 1hr/day for a few days(4-5),then 1.5hr/day for a few days,then maybe 2hrs/day. GL.peace
 

giggywatts

Well-Known Member
i sprouted mine under 7 13 watt and 2 26 watt, and never thought anything about it. i guess i better look into this before i add a 400 watt mh. i know when planting outside they get the full sun from day one..
 
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