mr. childs
Well-Known Member
maybe @Or_Gro will tell us the readings from his uvb tubes after a year & tell us how bad theyve deteriorated...
UV Suppliment Lighting
- Thread starter DrGreenT420
- Start date
Or_Gro
Well-Known Member
I have 2 4-footers in each 4x4, about 22” high, on sidewalls at 45 degree angle...basically new, putting down ~80 uw/sqcm across the canopy, 6 hours each day.
Remind me next year...maybe i’ll be runnin them closer
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Randomblame
Well-Known Member
Unfortunately I have no release date and no further infos.
@Airwalker16 has found a Solacure website where they said they would develope a T5 with some visible light like a reptile bulb but still with the same phosphor mixed in they've used for their other bulbs. So they must be close to the powerveg+ or reptile bulbs spectrum wise but should go down to the same UVB range like the other Solacure bulbs.
Randomblame
Well-Known Member
Look at the lower left corner, mate!
You still get 34% UVB after ~2000h. If you use them lets say 5-6h per day they last around a year. But you can still use them in your veg area to harden off the plants before they go into the flowering area. This way you can directly start with up to 6h(or more) to get the thc increasing effect from the beginning.
Randomblame
Well-Known Member
Yeah, coolwhite bulbs have much more UVA below 6" distance. But it dissapears pretty fast further away and at the typical hanging height there is almost no UVA left, just a coolwhite daylight.
Randomblame
Well-Known Member
That R-zilla desert Series 50 on the 3rd picture look promising. Almost the same UVB range like the solacures starting with 280nm. But of course not available here in europe.... Nothing else I've expected.
Frank Cannon
Well-Known Member
Yes cuzzy, thats what I am planning to do with my 6% T5s in the Vesuvious sinks, as they deteriorate I am thinking I will upgrade to 10% or 14% and just use the 6%ers for veg and change out to the higher rated ones in bloom. ???
oldbeancounter
Well-Known Member
@Chunky Stool
Potassium sulfate(K2SO4)
likely order something like this below
https://www.amazon.com/20-Pounds-Potassium-Sulfate-Organic/dp/B004JLYD9U/ref=sr_1_2?keywords=Potassium+sulfate&qid=1558538422&s=gateway&sr=8-2
How much do you add and how?
I grow in ffof soil indoors mixed with promix
oldbeancounter
Well-Known Member
@Moflow is there that much of a difference?
Chunky Stool
Well-Known Member
I use 1/4 tsp per gallon.
How often depends on the nutes I'm already running.
There for a while I was running Mills basis A/B, Floralicious plus, and K2SO4. Should have ended up being around 6-4-8 NPK.
Worked great in veg.
Now I'm experimenting with double micros in soilless mediums...
Moflow
Well-Known Member
I sprinkle a small pinch of the Epsom salts into base of my pots soil before transplanting.I use 1/4 tsp per gallon.
How often depends on the nutes I'm already running.
There for a while I was running Mills basis A/B, Floralicious plus, and K2SO4. Should have ended up being around 6-4-8 NPK.
Worked great in veg.
Now I'm experimenting with double micros in soilless mediums...
oldbeancounter
Well-Known Member
That sounds interesting, how does one run double mictos in soiless?I use 1/4 tsp per gallon.
How often depends on the nutes I'm already running.
There for a while I was running Mills basis A/B, Floralicious plus, and K2SO4. Should have ended up being around 6-4-8 NPK.
Worked great in veg.
Now I'm experimenting with double micros in soilless mediums...
What are the benefits and pitfalls(if any)?
I had actually just added magnesium, foilure sprayed about 200 PPM and also tablespoon per gallon between a few plants(not pot) to RO water just before those plants light on.
Will hit the sleeping ladies when they get up with epson salt just at light on.
I see they have the R-zilla desert Serires 50 here in T-8, price though wow
https://www.amazon.ca/Zilla-11943-24-Inch-Fluorescent-17-Watt/dp/B000QFQ55I
Moflow
Well-Known Member
I went and checked the hut plants leaves there for ya.
26.9°C...... but, I've added reds, ir in there.
I'll check the white led tent shortly.
Right , checked that tent, the light consists of 5 x 2ft Samsung Hinflux lm301b diodes, no added reds, running at 100 watts. Light is on 24hrs at moment. 400 umols at canopy.
I dunno the tent temperature but the leaf temperature was 19.7°C....... lol
Now some people might baulk at the idea of growing in cold temperatures but I don't have any problems.
I might invest in a few red strips in the tent for winter this time. De tech has them.
I'll try n get a run over to the uv room this week to take temps.
Chunky Stool
Well-Known Member
I don't know X 2.
That's why it's an experiment -- I'm figuring it out.
Same idea as lucas formula but I'm using floramicro + seagrow bloom + a little epsom.
I may also play with the Mills A + seagrow & epsom.
Lots of possibilities...
oldbeancounter
Well-Known Member
Actually did that earlier today, but it was not a transplant . I add some mycorrhizae when transplanting as it clearly works.
oldbeancounter
Well-Known Member
I went and checked the hut plants leaves there for ya.
26.9°C...... but, I've added reds, ir in there.
I'll check the white led tent shortly.
Right , checked that tent, the light consists of 5 x 2ft Samsung Hinflux lm301b diodes, no added reds, running at 100 watts. Light is on 24hrs at moment. 400 umols at canopy.
I dunno the tent temperature but the leaf temperature was 19.7°C....... lol
Now some people might baulk at the idea of growing in cold temperatures but I don't have any problems.
@Moflow I think I should invest in a few red strips
Where would I buy red strips if I lived in Canada any idea? website for De tech ?
I am not against them at all which strips would you suggest I will look?
Oh thanks for checking the IR , trying to figure out what to build is not easy.
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oldbeancounter
Well-Known Member
Rocket Soul
Well-Known Member
Actually these graphics are less helpfull in choosing a UVB light than i thought: have a look how all the linear/lightube lights have much lower output everywhere on the spectrum (and remember, this is absolute values, not relative to max peak as you normally see in datasheets).
The higher values in the bulbs are simply cause their output is more concentrated than the linears.
But at least you can make some decent comparison within each category, bulb and linear/tube.
oldbeancounter
Well-Known Member
@ChiefRunningPhist
Wicked cool graphics
Where would a high attitude land race's UV exposure be vers the summer solstice in Whales, UK ?
mr. childs
Well-Known Member
thats why i still use my 4 year old pure uv bulbs, they cant possibly do that much damage, ...or can they ?