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Reply With QuoteThe UVB CFLs are very concentrated so you do wanna move it every few days or so or get 2 more. It should be 8-12 inches away from the plant.
10.0 UVB help! Proximity to plant? Are 2 bulbs too many?
I've got a beautiful Black Widow female from Mr. Nice thats just started her 6th week of flower (she'll go minimun 10 wks), and I just hooked up a 10.0 UVB 26w CFL reptile light in the corner of my 400w hps reflector. Its on a seperate timer to be on the middle four hours of my 12 hour light cycle. I was looking to add some uvb the last month of flower to get the extra trichome production that everyone wants.. My questions are exactly how far from the plant is best to have this CFL, and since its only realy hitting one side should I move it around or get another seperate 26w CFL for the other side? Or would that be too much uvb...
Please Help!!
The UVB CFLs are very concentrated so you do wanna move it every few days or so or get 2 more. It should be 8-12 inches away from the plant.
400W HPS GROW G13 PINEAPPLE EXPRESS + CH9 HUMBOLDT
http://www.rollitup.org/grow-journal...pineapple.html
You can get them pretty close without damage to the plant. I personally would move it around to get equal coverage. Adding another bulb would be a good idea and would not be too much.
My plants lean right up against my bulb - of course mine run cooler than the CFL equivalent but UV isn't harming the plant at all.
Wow beautiful! So you guys are firm believers in the uvb leading to bigger trichomes as well.. This is my first grow trying it. I'll grab another 10.0 26w cfl and put it on the other side. People tell me its the difference between great buds and connoisseur buds..
I just added one to my grow and i have it hanging in the middle of the canopy between the colas. got it on same timer as 1k hps added start of week 4 of flower 8 - 9 week strain.
I've noticed that it significantly increases the length of the trichs - in theory this would allow for a larger area to accommodate the heads of additional trichs.
Last edited by Gastanker; 11-02-2011 at 08:10 PM.
Thankyou for the pics and explaination brother. its much appreciated. This is the original Widow I'm growing... I'm predicting a monumental amount of juicy trichs with these extra uvb's..
hmm interesting, im going to have to try it, just a regular reptile bulb? and would it help other than just trichome production?
Dealing with U.S. Government =
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uvbs are tricky too much can harm ur plant, and shud only be used during last weeks of flower..
Uvb doesn't harm ur plant unless you over do it. They get uvb all day outside so i don't understand why every indoor grower doesn't use em. Its been proven that the most potent outdoor strains come from part of the earth that have the highest uvb index. I added one to my room after i researched it a little and ever since ive noticed an increase in trichs and the smell of the buds are a lot more complex and strong. I run a desert t5 and on the box it tells you at what distance for what strength. I can't remember the index that afghanistan has but that area gets the highest uvb index. Look up the index for that area and you will know how much to give your plants. I keep mine at 10 inches at an angle that hits the entire canopy. At 10 inches my plants are getting hit with a uv index of around 5. I could put it even closer but i wont get the coverage. I want to say afghanistan has a uvi of 12 most of the year if i remember right. check it out and good look. that b widow is looking potent as ever too good shit.
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