ProdigalSun
Well-Known Member
Great, more shit to buy. I'm deffy spending more than I'm making, starting to think this whole weed thing is a gimmick to sell some more lights fans nutes and filters.
As usual, the price tag on these is a major stumbling block on my end:
~honestly.. that is still something of a mystery on my end, nothing solid in-regards to coverage/intensity i'm pretty sure someone on this site has a good formula (watt per sq / LED)As usual, the price tag on these is a major stumbling block on my end:
"Red LED Array Light Source (Power Supply Not Included) $220.00"
How many are needed for 25 SF or a 5X5 area?.
As usual, the price tag on these is a major stumbling block on my end:
"Red LED Array Light Source (Power Supply Not Included) $220.00"
How many are needed for 25 SF or a 5X5 area?.
I have to say it really does help. I have 1 reptile UV bulb running along side of my 800 watt LED system and can see a difference between flowering room #2 & flowering room #1 where plain HPS/MH run.Put in two 10. Desert Reptile UVB 26w bulbs in 33 days into flowering on my 1st grow. 1st grow yeah, but Ive seen my fair share of fire and Im pretty certain those lights were the cause of it.
Scope some
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My plants agree, they are content with MV...I use multiple 160W spots.I wouldn't waste your money on UV LEDs at this point even the most powerful ones are still way under powered to give you any kind of coverage or penetration. Looking at those LEDs the top power rated ones are in the UVa range and only 400mW max watts. The UVb true ones in the 310-320nm range are only 180mW max. You're much better off going Mercury Vapor or T5s for a lot less money. I've been happy with these T5s so far http://www.lightyourreptiles.com/ard3t546in54.html Not sure what MV lights people are using but those seem to be more of spot coverage so you'd need more for your area and they produce more heat. The Mega-Ray zoo lamps look to be decent for MV though but the dude wants you to have a VM meter before he'll sell you them. Don't seem em on his site anymore either.
the potency at higher altitudes outdoors has been attributed to the cold as well. also most say while the gain more crystals they lose yield in this scenarioIf weed grown in the mountains is more potent because the UVB is stronger at higher altitude, than adding UVB light at a higher concentration directly to the plant would have the same effect. I cannot wait until someone comes out with a UVB LED light specific for growing. I sure would like to patent that baby.
of course its not good for the health of the plant, its a form of stressing, just like shocking with cold, but whats interesting about this is the claim that cirtian levels of uvb are high enough for the potency effect but low enough not to affect yield, i wonder if the same line of thinking could be applied to cold shocking? ive read any form of stressing can lead to hermie problems thoughYes, plants do better NOT exposed to UV (I can't speak for cannabis). I found this out in my months of research of covering materials before constructing a large greenhouse. All greenhouse covering materials exclude up to 100% of UV with the exception of glass.
UB
this is one of the main opinions in this thread and its garbage, of course it would be awsome to scientifically quantify the effects, but your still taking it from a random internet source. we all understand that PROOF isn't there, but to dismiss the idea because of lack of proof is... well thats fine if that your style, don't use uvb. but don't dog others based on that alone.if this is true.. then some1 should be doing a side by side.. 2 tents.. 1 uvb 1 none.. and then show us in lab results.. I don't wana hear oo ya its more potent.. cause u smoked it .. I wana see this on paper.. because big growers and smart people like sam skunkman have done this n noticed nothing different.. and the results ive read about uvb and shit has all been threw growing SEED .. all seeds are going to be different usually anyways.. soooo.. if some1 does this with clones.. and has lab results to back it up.. show it .. kuz I don't think it matters.. ive been growing for a while and genetics an environment are everything!!!
so your saying everything about growing cannabis is known. I disagree, we are in the golden age of weed now, maybe uvb works, maybe it aint worth the watts, if you want to disagree that's your right, but to say if it were any good we'd be implementing it already isn't a very valid reason. i also think we all understand its not essential for good herb, so the statement so many have made that thier garden does fine without it doesn;t hold water either because thats not to say it would.nt be a little better with ithaha.. some1 took it a little to far? lol im just saying ive been growing for a while.. and UVA/UVB hasn't really played a big part in it . and ive had amazing results .. and the other iuno million people out there that grow.. aren't using them either.! if it was actually working and making it more potent or changing the cannabinoid profile .. ud be seeing a lot more info on the net about how it actually works.. and if that was the case. some grow company out there would be developing some bulbs to have higher amounts of whatever they need to have to make bud stronger or whatever !!! not trying to start an argument. just giving my opinion on the matter. I haven't cared enough to do this Side by Side.. id rather do ones that actually matter.. like nutrients ..
Rene, cold will stress the plants and could cause them to die. Photosynthesis stops and a plant will die below 26 degrees if exposed for multiple days. Potency is not directly related to cold temperatures as the plant ripens and builds thc. Light spectrum/ intensity and uvb have been shown to effect potency more than anything except genetics.. Yield is effected by pruning and the amount of nutrients available to it. Uvb has very minimul effect on yield. Pruning to main branches in flower has the biggest effect on yield and you can take that to the bank.the potency at higher altitudes outdoors has been attributed to the cold as well. also most say while the gain more crystals they lose yield in this scenario
of course its not good for the health of the plant, its a form of stressing, just like shocking with cold, but whats interesting about this is the claim that cirtian levels of uvb are high enough for the potency effect but low enough not to affect yield, i wonder if the same line of thinking could be applied to cold shocking? ive read any form of stressing can lead to hermie problems though
this is one of the main opinions in this thread and its garbage, of course it would be awsome to scientifically quantify the effects, but your still taking it from a random internet source. we all understand that PROOF isn't there, but to dismiss the idea because of lack of proof is... well thats fine if that your style, don't use uvb. but don't dog others based on that alone.
so your saying everything about growing cannabis is known. I disagree, we are in the golden age of weed now, maybe uvb works, maybe it aint worth the watts, if you want to disagree that's your right, but to say if it were any good we'd be implementing it already isn't a very valid reason. i also think we all understand its not essential for good herb, so the statement so many have made that thier garden does fine without it doesn;t hold water either because thats not to say it would.nt be a little better with it
my opinion is im guessing uvb isn't as effecive as a florescent or hps of the same watts in the same place, but who knows. its definatly on my list of things to vary (but i got to finish the list of things to control before i can get to that list). Its been a minute since a thread has kept me interested for 14 pages, thanx much