Figure This Led Haters
- Thread starter ledgrowing
- Start date
justgrowit
Active Member
LEDs require supplemental lighting during flower to produce equivalent results to an HID system. LEDs rock it for veg and this is quickly intensifying with higher wattage systems and higher quality. LEDs are missing UVB light. The following are not my words but I think it really sums it up. Wish everyone knew this so we could focus on stealth LED flowering setups...
"VERY IMPORTANT POINT - DO YOU KNOW WHY CANNABIS PRODUCES THC? A pretty basic question but I am amazed at how many people have never thought about this.
"THC is produced to coat the tricomes to protect against UVB rays. This is this is the only reason. The only cannabis strains that produce THC are from around the equator where UVB is very high. Strains that come from higher north or south do not produce THC - it is called hemp.
"The UVB level of the sun in North America is pretty light - thus the outdoor stuff grown here is never that strong. HPS and MH lights produce small amounts of UVB - more than the sun around here - so the THC level is higher in indoor grows. LEDs are not yet available at a reasonable cost that produce UVB. You will not get high THC levels in bloom with a straight LED grow light - you must add a UVB light source. One way to do this is to mix in HPS or MH lights with the LEDs - especially in the last four weeks.
"The best way is to add a dedicated UVB light. These are produced for reptile habitats and are sold in pet shops or on-line. They are rated from 2.5 to 10.0 in UVB intensity. They are available in T8 florescent tubes, compact florescents and bulbs. You can double the THC level by adding these UVB lights - even with HPS and MH. With LEDs this is the key. You should consider adding this during the last four weeks of bloom - it is not that expansive and will produce killer results."
So for those of use who can't rely on equipment that requires loud fans, LED as an option is only getting better.
"VERY IMPORTANT POINT - DO YOU KNOW WHY CANNABIS PRODUCES THC? A pretty basic question but I am amazed at how many people have never thought about this.
"THC is produced to coat the tricomes to protect against UVB rays. This is this is the only reason. The only cannabis strains that produce THC are from around the equator where UVB is very high. Strains that come from higher north or south do not produce THC - it is called hemp.
"The UVB level of the sun in North America is pretty light - thus the outdoor stuff grown here is never that strong. HPS and MH lights produce small amounts of UVB - more than the sun around here - so the THC level is higher in indoor grows. LEDs are not yet available at a reasonable cost that produce UVB. You will not get high THC levels in bloom with a straight LED grow light - you must add a UVB light source. One way to do this is to mix in HPS or MH lights with the LEDs - especially in the last four weeks.
"The best way is to add a dedicated UVB light. These are produced for reptile habitats and are sold in pet shops or on-line. They are rated from 2.5 to 10.0 in UVB intensity. They are available in T8 florescent tubes, compact florescents and bulbs. You can double the THC level by adding these UVB lights - even with HPS and MH. With LEDs this is the key. You should consider adding this during the last four weeks of bloom - it is not that expansive and will produce killer results."
So for those of use who can't rely on equipment that requires loud fans, LED as an option is only getting better.
justgrowit
Active Member
In Summary, HID and LED are comparable for vegging. Add dedicated UVB light sources (reptile lights) to an LED setup during flower and increase your yield.
LEDs require supplemental lighting during flower to produce equivalent results to an HID system. LEDs rock it for veg and this is quickly intensifying with higher wattage systems and higher quality. LEDs are missing UVB light. The following are not my words but I think it really sums it up. Wish everyone knew this so we could focus on stealth LED flowering setups...
"VERY IMPORTANT POINT - DO YOU KNOW WHY CANNABIS PRODUCES THC? A pretty basic question but I am amazed at how many people have never thought about this.
"THC is produced to coat the tricomes to protect against UVB rays. This is this is the only reason. The only cannabis strains that produce THC are from around the equator where UVB is very high. Strains that come from higher north or south do not produce THC - it is called hemp.
"The UVB level of the sun in North America is pretty light - thus the outdoor stuff grown here is never that strong. HPS and MH lights produce small amounts of UVB - more than the sun around here - so the THC level is higher in indoor grows. LEDs are not yet available at a reasonable cost that produce UVB. You will not get high THC levels in bloom with a straight LED grow light - you must add a UVB light source. One way to do this is to mix in HPS or MH lights with the LEDs - especially in the last four weeks.
"The best way is to add a dedicated UVB light. These are produced for reptile habitats and are sold in pet shops or on-line. They are rated from 2.5 to 10.0 in UVB intensity. They are available in T8 florescent tubes, compact florescents and bulbs. You can double the THC level by adding these UVB lights - even with HPS and MH. With LEDs this is the key. You should consider adding this during the last four weeks of bloom - it is not that expansive and will produce killer results."
So for those of use who can't rely on equipment that requires loud fans, LED as an option is only getting better.
you must be smoking the stuff closet to the equator.
weedyweedy
Active Member
I don't trust LEDs but I don't hate them. I just don't think they have been improved enough for bud growing just yet.
HPS gives me more peace of mind.
HPS gives me more peace of mind.
sakhalchea
Active Member
lol i just busted out luaghing when i saw that lol and im in a libraryyou must be smoking the stuff closet to the equator.
donkeyote
Active Member
Well, when there is a an actual documented LED grow that produces .8g/watt then the original post has a valid point, but since that isn't happening, it's just typical internet speculation with a healthy dose of mudslinging. I mean I could come up with hypotheticals all day long and make retarded new threads that will waste everyone's time, but what's the point?
I heard that if you water your plants with Unicorn tears you can flower under a 23w CFL and get yields of 5g/watt. When you factor in the cost of Unicorn tears at $20/gal and consider all the money you are saving on nutrients, lighting, and fans, then clearly, Unicorn tears is the best way to grow mj. WHY THE FUCK AREN'T MORE PEOPLE GROWING WITH UNICORN TEARS???!!?!?!?
See what i did there? Until you LED douches actually offer up some actual empirical data that backs up your wild ass claims, then STFU and quit clogging up the website with more retarded, speculative threads.
I heard that if you water your plants with Unicorn tears you can flower under a 23w CFL and get yields of 5g/watt. When you factor in the cost of Unicorn tears at $20/gal and consider all the money you are saving on nutrients, lighting, and fans, then clearly, Unicorn tears is the best way to grow mj. WHY THE FUCK AREN'T MORE PEOPLE GROWING WITH UNICORN TEARS???!!?!?!?
See what i did there? Until you LED douches actually offer up some actual empirical data that backs up your wild ass claims, then STFU and quit clogging up the website with more retarded, speculative threads.
just some guy
Member
I like the thought of LEDs. If I were loaded with cash I would take some clones and do a side by side experiment. Someone somewhere please.
I dont understand why nobody has made the light intensity claim here.
You can have as many .5w LED lights as you want. NEVER DO THEY COMBINE TO CREATE A BRIGHTER LIGHT
The intensity of all those lights is weak, really weak.
It would be like having 10 23w cfls that produce 900 lumens and saying you have a 9000 lumen setup.
You dont, nothing combines to make any light brighter. You get better coverage with all those lights, so it may seem brighter then 1 of those cfl's, but NOTHING is putting out more then 900 lumens.
NOTHING.
Same shit with these LED's. 1 LED puts out x lumens, not sure what they are but for arguements sake lets just say 100 lumens.
No where under an LED panel is there going to be a more intense light then 100 lumens. You just get really, really good coverage because there are 1,000 little lights in 4 sq feet. But you really lack penetration, because there is hardly any intensity in the light.
I would imagine that light penetration has a lot to do with the lacking yields in LED grows, that arent scrogs. Even in conditions sutable for LED grows like scrogs, HID has still proven to be more efficient, IN ACTUAL GROWS.
And as far as heat goes I can touch my cooltube when its been on for 12 hours and it doesnt burn. My 400w light costs about $16 a month.
BTW 400w LED cost just as much as 400w HPS to run. My 120w fan does great at keeping it cool in there, which costs me about $6/month. My temps are 74-76 and that same fan also scrubs my room.
Flower room, mothers house, and the babies crib costs me about $35/month on the electric bill.
And as far as the LED heat benefit, your still going to need a fan/scrubber for smell issues, so WTF is the difference if it happens to cool your room down too?
Now what?
400w lights produce 8oz grows all the time. How many 8 oz yields can you show me a 400w LED pulled?
Thats my .02
Argue that.
You can have as many .5w LED lights as you want. NEVER DO THEY COMBINE TO CREATE A BRIGHTER LIGHT
The intensity of all those lights is weak, really weak.
It would be like having 10 23w cfls that produce 900 lumens and saying you have a 9000 lumen setup.
You dont, nothing combines to make any light brighter. You get better coverage with all those lights, so it may seem brighter then 1 of those cfl's, but NOTHING is putting out more then 900 lumens.
NOTHING.
Same shit with these LED's. 1 LED puts out x lumens, not sure what they are but for arguements sake lets just say 100 lumens.
No where under an LED panel is there going to be a more intense light then 100 lumens. You just get really, really good coverage because there are 1,000 little lights in 4 sq feet. But you really lack penetration, because there is hardly any intensity in the light.
I would imagine that light penetration has a lot to do with the lacking yields in LED grows, that arent scrogs. Even in conditions sutable for LED grows like scrogs, HID has still proven to be more efficient, IN ACTUAL GROWS.
And as far as heat goes I can touch my cooltube when its been on for 12 hours and it doesnt burn. My 400w light costs about $16 a month.
BTW 400w LED cost just as much as 400w HPS to run. My 120w fan does great at keeping it cool in there, which costs me about $6/month. My temps are 74-76 and that same fan also scrubs my room.
Flower room, mothers house, and the babies crib costs me about $35/month on the electric bill.
And as far as the LED heat benefit, your still going to need a fan/scrubber for smell issues, so WTF is the difference if it happens to cool your room down too?
Now what?
400w lights produce 8oz grows all the time. How many 8 oz yields can you show me a 400w LED pulled?
Thats my .02
Argue that.
that's so full of shit.LEDs require supplemental lighting during flower to produce equivalent results to an HID system. LEDs rock it for veg and this is quickly intensifying with higher wattage systems and higher quality. LEDs are missing UVB light. The following are not my words but I think it really sums it up. Wish everyone knew this so we could focus on stealth LED flowering setups...
"VERY IMPORTANT POINT - DO YOU KNOW WHY CANNABIS PRODUCES THC? A pretty basic question but I am amazed at how many people have never thought about this.
"THC is produced to coat the tricomes to protect against UVB rays. This is this is the only reason. The only cannabis strains that produce THC are from around the equator where UVB is very high. Strains that come from higher north or south do not produce THC - it is called hemp.
"The UVB level of the sun in North America is pretty light - thus the outdoor stuff grown here is never that strong. HPS and MH lights produce small amounts of UVB - more than the sun around here - so the THC level is higher in indoor grows. LEDs are not yet available at a reasonable cost that produce UVB. You will not get high THC levels in bloom with a straight LED grow light - you must add a UVB light source. One way to do this is to mix in HPS or MH lights with the LEDs - especially in the last four weeks.
"The best way is to add a dedicated UVB light. These are produced for reptile habitats and are sold in pet shops or on-line. They are rated from 2.5 to 10.0 in UVB intensity. They are available in T8 florescent tubes, compact florescents and bulbs. You can double the THC level by adding these UVB lights - even with HPS and MH. With LEDs this is the key. You should consider adding this during the last four weeks of bloom - it is not that expansive and will produce killer results."
So for those of use who can't rely on equipment that requires loud fans, LED as an option is only getting better.
weedyweedy
Active Member
The UV THC correlation is true. I saw it on this BBC documentary.
It actually makes sense that the plant produces THC as a reaction to UV rays.
sakhalchea
Active Member
If u took a look at quality of the weed it blows HPS all day, and in the medical shop they sell the most exspensive HPS 8ths for 65$ so wat if LEd was on sell.. with double THC level it would either be 130$ an 8th or put HPS out of business and all u hps dirt farmers would be growing dirt.
FuZZyBUDz
Well-Known Member
golddog
Well-Known Member
sakhalchea,
I will follow you stuff, but it says in your journal
"I will keep u all posted, my plants will recieve 12 hours of sun since its spring and hot, than 12 of 600 watts Led and 90 watts Cfl. That way i get more growth in my plants and Cut dowm my electric bill in half
my grow tent is near my window so its convient."
I am still looking for an all LED grow
I will follow you stuff, but it says in your journal
"I will keep u all posted, my plants will recieve 12 hours of sun since its spring and hot, than 12 of 600 watts Led and 90 watts Cfl. That way i get more growth in my plants and Cut dowm my electric bill in half
my grow tent is near my window so its convient."I am still looking for an all LED grow
sakhalchea
Active Member
If the sun put out more lumens than HPS and LED and its free why in the hell would i wont take advantage and tweak my plants for an extra boost?