when to hit em with uvb?

Gquebed · Jan 27, 2015

So i've been researching uvb because my Solar Storms have them built it. What i haven't been able to find is when to use the uvb. I've read early on in flower uvb will bring early trich development. And i've also read that it should be used in the "finishing phase". What is the finishing phase? Last 2,3or 4 weeks?

Also, i thought the built in uvb would be convenient, but not really... i will have to flip the switch on and off on the light rather than use a timer. :/

Gquebed · Jan 28, 2015

So I'm not the only one who doesn't know when, exactly, the finishing phase is.... or when it's best to put on the uvb?

RM3 · Jan 28, 2015

I use T5's and run UV the whole grow even in veg

hyroot · Jan 28, 2015

depends on the percentage of uvb. 5% or less all day long. 10% 5-6 hours a day. 20% 2 hours a day. All during veg and flower

Gquebed · Jan 28, 2015

Ahhh...well that helps a lot guys. I guess i just need to look at the stats on my leds to find out what the % is on the bulbs...

fishdeth · Jan 29, 2015

When you look at the places on earth where some of the best outdoor weed comes from, they are in a belt that is rich in UVB.
This comes on every day, veg or flower.
I use a CFL "lizard" bulb (in addition to HPS) and it is on always, I just move it around every day.

cannawizard · Jan 29, 2015

veg and bloom, just mimic outdoor sunlight, if the sun is up ultraviolet is emitted~

#cheers

VTMi'kmaq · Jan 29, 2015

You guys wear uv or sunglasses with higher% lamps?

Gquebed · Jan 29, 2015

hyroot said:
depends on the percentage of uvb. 5% or less all day long. 10% 5-6 hours a day. 20% 2 hours a day. All during veg and flower

Do bulb manufactures state uvb percentages for the different bulbs?

fishdeth · Jan 29, 2015

cannawizard said:
veg and bloom, just mimic outdoor sunlight, if the sun is up ultraviolet is emitted~

#cheers

Bingo !

fishdeth · Jan 29, 2015

VTMi'kmaq said:
You guys wear uv or sunglasses with higher% lamps?

I SHOULD wear the glasses, but I keep a hat on top of the fridge and keep the HPS out of my eyes with the brim.
I pull the chain on the fixture to turn off the UVB lamp.

Detroit J420 · Jan 30, 2015

You wanna follow nature where higher levels of uvb uva etc.. Are in veg/ spring time if you blast them late in flowering your not gonna get a natural high effect...it will make it stronger uvb causes rapid maturing and aging in the tricromes not just trichromes but everything car paint your skin everything...

Canon · Jan 30, 2015

fishdeth said:
When you look at the places on earth where some of the best outdoor weed comes from, they are in a belt that is rich in UVB.
This comes on every day, veg or flower.
I use a CFL "lizard" bulb (in addition to HPS) and it is on always, I just move it around every day.
View attachment 3341283

Have you noticed any significant difference with the little Lizard's Bulb,, or could this be the first grow with it?
Had one gifted to try. Only a couple days with it. So...

fishdeth · Jan 30, 2015

Canon said:
Have you noticed any significant difference with the little Lizard's Bulb,, or could this be the first grow with it?
Had one gifted to try. Only a couple days with it. So...

First grow, period.
The blizzard bulb isn't real strong unless it's close, that's why I move it every day.
Couldn't hurt... Right ?

Canon · Jan 30, 2015

Thanks. I've the "UVB200" same company. I'm not very confident that I'll actually see anything significant. But the bulb was a donation to try.. then report.
Guess time will tell.

Gquebed · Jan 30, 2015

Detroit J420 said:
You wanna follow nature where higher levels of uvb uva etc.. Are in veg/ spring time if you blast them late in flowering your not gonna get a natural high effect...it will make it stronger uvb causes rapid maturing and aging in the tricromes not just trichromes but everything car paint your skin everything...

This might not be a bad thing. I have to hids in the same room and from what i have read the leds will tKe longer to mature....maybe the uvb will speed that up a bit and they will all finish at the same time? Depends on genentics i guess...

Anyway, so you are saying uvb should be on all the time...just like the sun?

Detroit J420 · Jan 31, 2015

The parts of the plant that were hit with uvb in veg will be stronger, UV will make your plant darker green more plastic looking, you gotta be real careful when hitting them late in flowering especially with indica dominant strains you can turn everything amber quick not so much with hazez or Sativa's. I played around with some zooalogist uvb lights before it changes the high makes it stronger sometimes it can be a weird high though, now all I use is a nice 400 M/H for veg. But I'm glad I experimented and you should too. You can learn from them bulbs

OGkushNC · Jan 31, 2015

fishdeth said:
First grow, period.
The blizzard bulb isn't real strong unless it's close, that's why I move it every day.
Couldn't hurt... Right ?
View attachment 3342095 View attachment 3342097

I noticed you have the tropical uvb Try the desert uvb if you can find it. I have one in my grow room and It seems to be working really well atm!!

cannawizard · Jan 31, 2015

Detroit J420 said:
The parts of the plant that were hit with uvb in veg will be stronger, UV will make your plant darker green more plastic looking, you gotta be real careful when hitting them late in flowering especially with indica dominant strains you can turn everything amber quick not so much with hazez or Sativa's. I played around with some zooalogist uvb lights before it changes the high makes it stronger sometimes it can be a weird high though, now all I use is a nice 400 M/H for veg. But I'm glad I experimented and you should too. You can learn from them bulbs

I have also noticed that too with indica-dom strains were more prone to UVB (500+ u/cw2 levels) than pure sativas (landrace/asia).. I guess even with higher levels of UVB exposure, sativas won't mature faster-- but more research needs to be done with ultraviolet & cannabis, that whole (enzymatic trich changes) under the microscope is still fuzzy~

Detroit J420 · Feb 1, 2015

cannawizard said:
I have also noticed that too with indica-dom strains were more prone to UVB (500+ u/cw2 levels) than pure sativas (landrace/asia).. I guess even with higher levels of UVB exposure, sativas won't mature faster-- but more research needs to be done with ultraviolet & cannabis, that whole (enzymatic trich changes) under the microscope is still fuzzy~

Could it be that UVB levels are high at the equator where hazes and sativa dom evolved that's why there less prone to rapid tri maturation? Imma look it up

when to hit em with uvb?

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