10.0 Uvb Light
- Thread starter weedyoo
- Start date
Landragon
Well-Known Member
I'm not familiar with a 160 watt zoo med. I certainly did not see it in the research I did. Can you provide more details please? What style lamp is it, fluorescent tube, screw-in cfl, or other? The problematic bulbs were cfl 10.0, as well as the linear tube 10.0 fluorescent .
If yours is a "bad" one, you can expect odd ratios of low frequency radiation as well as non solar bands. What this will do a up in the air, but googling " effects of non solar radiation" show some things I wouldn't want going on n my grow as I intend on breeding.
If yours is a "bad" one, you can expect odd ratios of low frequency radiation as well as non solar bands. What this will do a up in the air, but googling " effects of non solar radiation" show some things I wouldn't want going on n my grow as I intend on breeding.
HOHO
New Member
hope this works
http://www.petstore.com/ps_ViewItem-idProduct-MZ45010.html
http://www.petstore.com/ps_ViewItem-idProduct-MZ45010.html
weedyoo
Well-Known Member
hey you guys thanks to all the in put here
i now have 1 10.0 uvb that stays on 12 hours i just move it aroung the room. i have hemp string with a s hook tied on the end i use 3 of these to move it around the room
Landragon
Well-Known Member
Ok sorry it took so long. Further research lends me to believe you have an older 160 mercury vapor flood. They recently reformulated them to give MORE UV-B. Yours puts out a fair amount and the distance you have is fine, I think. They aren't a typical "flood" and have a narrow area of solar levels. It appears that would be good for testing in a 1' square area.or a little bigger. Have fun.
I was going to say, mercury vapors can pour out UVB.
I think it's going to be important to avoid going for one bright bulb and instead use lots of low powers.
Same way that if you use one massive HPS in the center of your grow, the outside facing areas of the plants don't get the same light exposure - so people generally agree it's better to use two 600's in place of one 1kw, or three 400's for more even light distribution.
UVB is high energy radiation. The reason it gives you sunburn is because a lot of things look opaque to it and it'll absorb into them.
This makes me suspicious of how well it's going to be reflecting off the grow room walls and how much leaf shadows will pull light away from lower branches.
I think UVB would have the best impact if you went for a bunch of small lamps and then place them all around your plants - over and under the canopy - specifically around the budding sites. Or used strip lights vertically.
I've also been thinking that I'm going to put some effort into turning my planters on a regular basis since I've only got the one 1kw HPS and it'll improve UVB distribution. I'd love some of those automatic pot turntable things - I might rip apart some microwaves and DIY them.
I already have my washing machine watering control (sig). If you're growing in a tent, you could easily put one or two CFL's on a stand in the center of the floor and turning the plants 90's every now and again would cover them entirely with UVB.
If you want an all over sexy ass sun tanned finish at the beach, you don't just lie on your front for three hours as the sun comes over at 1. Notice how people that do end up with really, really sharp lines where the UV has and hasn't hit? The same thing will be happening here with the plants. To get tanned all over, you need to move around to get even exposure.
Rep to topfuel for doing the maths and keeping it a reasonably balanced discussion.
I'm very careful about buying into things based on tests like these, where people don't have a control, but I can see the logic behind this one and I trust at least one or two guys here are experienced and can use their eyes alone to see the difference between grows.
EDIT:
(forgot to add some things)
- Never have your lights on while you're around. UV causes cataracts (the corneas in your eyes become cloudy). It may not happen right away, but accumulated damage is one of the major causes later on. You don't need to be looking directly at them for that to happen. Welders often shield other weld arcs with their hand if it's directly in front of them, but a lot of them get UV burnt eyes when someone is welding off to the side and they don't think they need to cover their eyes (the cornea of the eye is raised out the front quite a lot and the UV can still hit them fine from the side).
- The idea that you need hundreds of UV fluoros to replicate the sun is entirely false. Topfuel's maths demonstrates this, as does the fact you can get tanned in a sunbed quicker than you can under the sun.
I think it's going to be important to avoid going for one bright bulb and instead use lots of low powers.
Same way that if you use one massive HPS in the center of your grow, the outside facing areas of the plants don't get the same light exposure - so people generally agree it's better to use two 600's in place of one 1kw, or three 400's for more even light distribution.
UVB is high energy radiation. The reason it gives you sunburn is because a lot of things look opaque to it and it'll absorb into them.
This makes me suspicious of how well it's going to be reflecting off the grow room walls and how much leaf shadows will pull light away from lower branches.
I think UVB would have the best impact if you went for a bunch of small lamps and then place them all around your plants - over and under the canopy - specifically around the budding sites. Or used strip lights vertically.
I've also been thinking that I'm going to put some effort into turning my planters on a regular basis since I've only got the one 1kw HPS and it'll improve UVB distribution. I'd love some of those automatic pot turntable things - I might rip apart some microwaves and DIY them.
I already have my washing machine watering control (sig). If you're growing in a tent, you could easily put one or two CFL's on a stand in the center of the floor and turning the plants 90's every now and again would cover them entirely with UVB.If you want an all over sexy ass sun tanned finish at the beach, you don't just lie on your front for three hours as the sun comes over at 1. Notice how people that do end up with really, really sharp lines where the UV has and hasn't hit? The same thing will be happening here with the plants. To get tanned all over, you need to move around to get even exposure.
Rep to topfuel for doing the maths and keeping it a reasonably balanced discussion.
I'm very careful about buying into things based on tests like these, where people don't have a control, but I can see the logic behind this one and I trust at least one or two guys here are experienced and can use their eyes alone to see the difference between grows.
EDIT:
(forgot to add some things)
- Never have your lights on while you're around. UV causes cataracts (the corneas in your eyes become cloudy). It may not happen right away, but accumulated damage is one of the major causes later on. You don't need to be looking directly at them for that to happen. Welders often shield other weld arcs with their hand if it's directly in front of them, but a lot of them get UV burnt eyes when someone is welding off to the side and they don't think they need to cover their eyes (the cornea of the eye is raised out the front quite a lot and the UV can still hit them fine from the side).
- The idea that you need hundreds of UV fluoros to replicate the sun is entirely false. Topfuel's maths demonstrates this, as does the fact you can get tanned in a sunbed quicker than you can under the sun.
grape swisha
Well-Known Member
interesting thread i would like to find out more
I don't want to be a dick man, but are those leaves not burnt?here my uvb installed
and after one day check out these hairs
closet nugg to the lamp
2smoke4bud7
Well-Known Member
what do you think it could be?
yeah well i flushed them and they seem to reviving pretty well all the green is coming back except for one of them
i predicited that it was some kinda N lockout
or ph levels were fucked cause the grower i got them from said keep them in 5.3-5.5 ph and never tested my waters because no PH tester! lol
anyways have one coming by mail in a few days will let you know what the real deal was.
2smoke4bud7
Well-Known Member
oh yeah it couldnt have been the heat because the temps never rise over 84 degrees
BloodShot420
Well-Known Member
84 is a little warm for no co2... was that temp taken at the canopy?
although - it looks like a very sativa strain, and a recently added bangin' amount of UVB... which if introduced that strong randomly in the middle of the plants life, or even in the middle of flowering, it will probably appear to slightly "burn" them...
but they do sortof look odd... i'll check out the journal
although - it looks like a very sativa strain, and a recently added bangin' amount of UVB... which if introduced that strong randomly in the middle of the plants life, or even in the middle of flowering, it will probably appear to slightly "burn" them...
but they do sortof look odd... i'll check out the journal
2smoke4bud7
Well-Known Member
thanks i take constructive critisim
so throw everything you got at me lol!!
yeah i moved the uvb light to the og side and works perfect no stretch at all and the ones closet are bushing up like carzy
Has anyone noticed after adding UVB lights the smell of the room changed? I don't know what it means but I don't need a carbon filter anymore since I have turned on the uvb??? any ideas?
I am using 2 150w HPS, 2 LED 26w panels and a UVB 10.0 CFL in soil bubblicious (I grow for quality not quanity) so I only run 1-2 plants at a time.
I am using 2 150w HPS, 2 LED 26w panels and a UVB 10.0 CFL in soil bubblicious (I grow for quality not quanity) so I only run 1-2 plants at a time.
cackpircings
Well-Known Member
I have 35 plants in flower dont even use a carbon filter, but if it has changed the smell that is odd. Its probibly all in your head
It could be, but I can rub the leaves and there is no noticable scent, I have never had a plant not smell? I know the strain is no skunk but c'mon no scent?