Rcubed
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- Aug 14, 2017
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You could probably hang 1 315 watt cmh fixture for the amount of watts you're pulling from those cfl bulbs and kick ass in that room. You wouldn't have that stretchy sparse growth.
I was thinkin the same thingYou could probably hang 1 315 watt cmh fixture for the amount of watts you're pulling from those cfl bulbs and kick ass in that room. You wouldn't have that stretchy sparse growth.
It' a dude.,RoscoeI am having trouble determining whether my plant is male or female. Can anyone tell on this plant? Switched to a 12/12 cycle on 6/1.
It' a dude.,Roscoe
For the plants you have now 1 315 would blow away those cfls. If you wanted to grow more plants you could add a couple more and come close to filling that room. I currently have just 2 in an 8x4 and it does a good job. I have another that I keep outside the tent to grow mothers and reveg.It’s a fairly large room, 5’x10’ approximately. I’m currently running seven 120w CFLs. When switching to the 315w cmh fixtures How many would I need? One good spot? Or fill the room in a couple areas?
With let's & cob lights you can' go by a watt per gram. You need to have minimum 35 plus par reading per square-foot.You could probably hang 1 315 watt cmh fixture for the amount of watts you're pulling from those cfl bulbs and kick ass in that room. You wouldn't have that stretchy sparse growth.
Yeah COB LED lighting is good too. I just know CMH is more affordable and a real good light for a beginner. I got my fixtures with internal ballasts for about $150 each and the bulbs for about $90. Running those two and a good blower barely makes a dent in my power bill and runs way cooler than the MH and HPS lights I used to run.With let's & cob lights you can' go by a watt per gram. You need to have minimum 35 plus par reading per square-foot.
Yeah COB LED lighting is good too. I just know CMH is more affordable and a real good light for a beginner. I got my fixtures with internal ballasts for about $150 each and the bulbs for about $90. Running those two and a good blower barely makes a dent in my power bill and runs way cooler than the MH and HPS lights I used to run.
I don't run a COBight but I think that's gonna be my next light. I run hps in the winter and let's in summer. I grow in a 8×10.wood shop with a.c. I added this year. The heat was getting out of control. This is only my 2nd year indoors . The last 30 plus have been outdoors. It's said different animal for sure! I do both.now. I'll never giveYeah COB LED lighting is good too. I just know CMH is more affordable and a real good light for a beginner. I got my fixtures with internal ballasts for about $150 each and the bulbs for about $90. Running those two and a good blower barely makes a dent in my power bill and runs way cooler than the MH and HPS lights I used to run.
Photosynthetically active radiation that measures the light waves from 400 to 700 nm. The photons that hit your plant every second.@Roscoe14 are you okay?
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You need to have minimum 35 plus par reading per square-foot......
what is a 35 plus par reading?
Basically the blue through red spectrum that is used by your plant during it's life cycle. I bI don't run a COBight but I think that's gonna be my next light. I run hps in the winter and let's in summer. I grow in a 8×10.wood shop with a.c. I added this year. The heat was getting out of control. This is only my 2nd year indoors . The last 30 plus have been outdoors. It's said different animal for sure! I do both.now. I'll never give
Photosynthetically active radiation that measures the light waves from 400 to 700 nm. The photons that hit your plant every second.
Not watts , usable light that it measures your full range of light from your lights source per second. It's confusing as hell. I've had it explained to me several times and it's another way of measuring usable light per square-foot. Google it and you can go deep down the rabbits holeI know what par is your 35 plus par reading measurement is let me put it nicely (a completely made up number) are you talking WATTS per square foot? you are confusing me lol
THC@Roscoe14 are you okay?
....
You need to have minimum 35 plus par reading per square-foot......
what is a 35 plus par reading?
Basically the blue through red spectrum that is used by your plant during it's life cycle. I b
Not watts , usable light that it measures your full range of light from your lights source per second. It's confusing as hell. I've had it explained to me several times and it's another way of measuring usable light per square-foot. Google it and you can go deep down the rabbits hole
THC
farmer has a great article on it explains it quite well. If I can figure how to post a pic on a thread I'll throw it up. I was wrong, according to this forum it's 45! Help me out here bro,Roscoe
Scubascrog, here is the article I found for reference. It is from this site but I don't know how to pull it up on hete. I was wrong with what I was told. 35 was the number I was told was the minimum but according to here it's 45. If you can figure the math out on how they get this your doing better than this 61 year old fart! Lol Peace, Roscoe
It is confusing as hell. My wife has a cousin who is a grower in Grassvalley ,Ca and he's up on all this shit. I've read everything I can get ahold of to try to see where he's coming from35 par per foot ?!?!?! that is a completely bogus measurement. dont believe everything you read!
you mean watts per square foot. you are confusing the two. as for par or (light intensity) , you need around 500-700 umol meter/seconds squared for cannabis. this is achieved by using about 35-45 watts a square foot of COB lighting.
-hope this clears it up a bit.
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