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ICMag with help from Landrace Warden and The Vault is running a NEW contest in November! You can check it here. Prizes are seeds & forum premium access. Come join in!
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Classyathome
Looks great - I've had awesome results with those 42w cfls.
Keep us posted - I'm bringing a cooler and a lawnchair...
Keep us posted - I'm bringing a cooler and a lawnchair...
you should add some more 42w or upgrade to bigger bulbs, u have just over 3000 lumens per sq ft were as you want 8-10,000 lumens per sq ft @ 2700-3000k for flowering
Pig-Pen
Member
Pardon the interruption....
Pardon the interruption....
....but you constantly spout about these lumen figures of yours and you say "watts are meaningless." How did you come up with these numbers? How do you figure that lumen rating are any more meaningful than watts? Do you realize that lumens are as arbitrary to plant growth as watts? PAR watts are the only thing plants "see" that we can measure, not watts or lumens. Using watts as a relative guide works well enough and always has for everyone. Keep it Simple.
Go tell DrB that he needs more "lumens per square foot" , LOL.
Pardon the interruption....
cfl...KING said:
....but you constantly spout about these lumen figures of yours and you say "watts are meaningless." How did you come up with these numbers? How do you figure that lumen rating are any more meaningful than watts? Do you realize that lumens are as arbitrary to plant growth as watts? PAR watts are the only thing plants "see" that we can measure, not watts or lumens. Using watts as a relative guide works well enough and always has for everyone. Keep it Simple.
Go tell DrB that he needs more "lumens per square foot" , LOL.
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well i think ya wold consider these results...3 week flowering
Pig-Pen
Member
Georgia Green said:I was hopeing I could get a even canopy SOG with clones in there thats why I am working on this hood thing I think I can get 8 in a line if I put them closer together but I am not gonna go with any larger size bulb because I do my shopping in town and the 42 is as big as they got I don't have a credit card and if I did I still wouldn't order stuff online,, I still have smoke this is just a project,,
For price, efficiency and availability, it's hard to beat the 42watters. 8 of them will be very hot, so be prepared to make accommodations for a dramatic exhaust/ventilation system.
Wish I could grow outside!
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Mr_Micro
Member
I hate to rain on anyone's parade, since I really do my best to be a mellow peaceable guy, but I'm going to have to agree with Pig-Pen and say don't worry about the lumens at all since plants really only see PAR watts. And you really don't have to be so exact about figuring out how much you need there, just go by how many watts the bulbs are and shoot for having 50 watts per square foot and you'll be assured good results.
That said, your space is about 3.16 feet wide by 1.41 feet deep, so you've got 4.45 square feet of growing space. Which means that you'd want somewhere around 225 or so watts of light (more is better, but 225 is plenty enough). And since you've now got five 42 watt bulbs you have a total of 210 watts.
If you could I'd say throw in 1 more bulb for good measure, but if you don't have the space or don't want the hassle of re-mounting and wiring everything again than I'm sure you'll have just fine results with the 5 bulbs you have now.
So yeah, don't stress to much about the lighting man. Everything looks nice and clean and I'll be anxious to see how the final version of your cab turns out!
That said, your space is about 3.16 feet wide by 1.41 feet deep, so you've got 4.45 square feet of growing space. Which means that you'd want somewhere around 225 or so watts of light (more is better, but 225 is plenty enough). And since you've now got five 42 watt bulbs you have a total of 210 watts.
If you could I'd say throw in 1 more bulb for good measure, but if you don't have the space or don't want the hassle of re-mounting and wiring everything again than I'm sure you'll have just fine results with the 5 bulbs you have now.
So yeah, don't stress to much about the lighting man. Everything looks nice and clean and I'll be anxious to see how the final version of your cab turns out!
looking good, r u gonna cover it with mylar or paint it flat white?
Georgia Green said:I am all most done with the new hood. What do you guys think White paint or the Mylar looking stuff?
Paint that Bad Boy with many layers of flat white (after a good primer to seal the pores)...to reflect and Waterproof.
that pressboard with cut edges will begin to expand as it absorbs Humidity
Nice lookin hood idea
funk_buddha
Member
Looking good Georgia, cant wait to see what it starts churning out. You seem to have things thoroughly thought out.
that looks like a sick hood, i was thinkin of making somethin like that but you actual did it.
im not gonna claim to be some sort of expert grower im far from it, but i do have a couple of complete grows under my belt as well as about 6 uncompleted for various reasons grows, all under CFL. the max i ever had was 120watts combined in a growing area roughly 2/3 the size of what you have. you will be fine, just keep the lights close to the tops of the plants.
Im not sure what the difference in lumens is between the 42w an 40watters but should be so minamal that you shouldnt really notice
