It has a 6"so area. It's not practical at all. and Fucking huge. Pretty sure that things at least 4' talk.
Clearly, it would not be used for a closet or garage type grow. Just for research in a commercial facility... and it would need like I said a minimum 2x2 ft beam. That thing could be anywhere from $20k-200k. Am not even going to ask for a price, but having a thing that allows absolute control over UVA/B quantities, full spectrum, intensity going up to the intensity of 1.5 suns would be a dream. Apparently they use Xenon lights.Looks expensive as well.
*correction*Lol well I do love star trek references
A few things I wanted to hit on. Whether you're 3000m in elevation or 2m in elevation a 10 UV index will be pretty much the same regardless.
View attachment 4343453
The UV index is a measuremt of UVB in 3 WV spots (295nm, 305nm & 325nm) with each WV given different weight on the final calculation than the other. This is due to the the absorption rate of UV light on most molecules.
View attachment 4343454 View attachment 4343455
The smaller the WV the more easily it is absorbed by water, DNA, ect, so the smaller the WV the greater the weight on calculated UV index. Australia is not very high elevation but has UV indexes of 14+! So UV index may correlate sometimes with elevation but it is actually only dependent on real life UVB radiation measurements regardless of elevation.
I'd have to ask for some data showing that 1000m elevation outdoors isn't enough UVB to notice a difference. They grow weed here in California pretty well and that's about sea level. Even vulcans will sunburn at the beach lol
μ (micro) = 1×10^(-6)
m (milli) = 1×10^(-3)
100μw/cm2 = 1w/m2
450μw/cm2 = 4.5w/m2 which is more than 8× more UVB radiation than a 10.6 UV index. I'm not sure what UV index that would correspond too.
500μw/m2 = 0.0005w/m2 and isn't very much UVB.
It'd be nice to have a PC UV chip, but 290ish nm chips are dismal effeciency and you'd have to use that as your pump because you can't upgrade photons. I think the best LED UV will be more than 2 WV. I'm trying to include as many as I can. So far I've found 305nm, 310nm, 320nm, 340nm, 365nm, 385nm, and 395nm.
I agree about 285nm. I want to try, but like you said I think there's benefit to a wider SPD. So if I'm going wide I'll have to include the other WVs anyways, so personally I'm going to try to reach into 290ish with my 305nm leg, but that's about as far as I'm going for targeting 285nm this time around. If I wasn't including other WVs then I think 1 or 2 chips of 285nm would achieve UVR8 activation like you enlightened me to in some of your earlier knowledge dumps
https://en.m.wikipedia.org/wiki/Ultraviolet_index
EDIT:
They weight the area under the UV portion of the SPD towards 295 at 100% and 325nm at 0.3% I think they go all the way till 400nm at true 0% (exponential scale). Then this weighted quantity of UV radiation is divided by 25mw/m2 to determine UV index.
So @Randomblame I believe my total radiation comparison in a 10.6 UV index day at 0.55w/m2 is off because I don't know the actual quantity (area under curve) from 290nm - 400nm, I only know 3 WV intensities. Looks like you'll have to downgrade my Vulcan status aha
I guess the take away for me is that UV index is a decent gauge imo when calculating a doseage range of UVB radiation, but that UV index says little about the quantity of UVA present.
years ago i used the exoterra cfl's that were 15.0
I've used the CFL UVB150s, they look the same as the uvb 15.0, I had good results.
theoretically... one could actually hang CFL bulbs at 8" or 9" and the LEDs at 18", without creating too much shade.I've used the CFL UVB150s, they look the same as the uvb 15.0, I had good results.
View attachment 4355860
there is contact info available, call them or email if you want to know.. I will wait for the HLG light I think before any more UV investmentsAnybody come across the Agric-Ultra MetaRail?
https://www.agricultra.com/metarail-uva-uvb-light
Can't put my finger on it, but something is screaming BS at me!
I believe it's not a light... It's just a pdf.
https://www.cutter.com.au/product-category/diy-led-kits/horticulture-lighting/grow-led-colors/round-printed-circuit-boards/Well it looks like the UV game has finally made it's way to LEDs. @welight at cutter seems to have all kinds of options now on their website for all different wavelengths. Im starting to believe bulky 2'/4' fluro bulbs and t5 ballasts aren't going to be needed anymore. kinda glad I waited. I think I'll be purchasing a few of the 285mm single stars. Maybe 12-16 per 4X4?
https://www.cutter.com.au/product/cutter-zge-285-dxp-custom/
Also Mark, I can't find anything on your site that's showing single star pad UVs. It's a very recent post to instagram where you showed pics of them.
Those are what I'm more interested in for spread.
This is how I'm thinking about UVB..Well it looks like the UV game has finally made it's way to LEDs. @welight at cutter seems to have all kinds of options now on their website for all different wavelengths. Im starting to believe bulky 2'/4' fluro bulbs and t5 ballasts aren't going to be needed anymore. kinda glad I waited. I think I'll be purchasing a few of the 285mm single stars. Maybe 12-16 per 4X4?
https://www.cutter.com.au/product/cutter-zge-285-dxp-custom/
Also Mark, I can't find anything on your site that's showing single star pad UVs. It's a very recent post to instagram where you showed pics of them.
Those are what I'm more interested in for spread.
Much easier and cheaper to run a simple T5 rig with either 2 or 4foot Agromax Pure Uv / Reptilsun 10 bulbs.Has anybody checked out the specs on that thing? Would be nice to have one with a 2x2ft beam so you could exactly research every single strain on its particular requirements re light.
that's my plan this run: add a 2 ft agromax along with 2 growmaus far red pucks in the middle of my 4K Atreum boards.Much easier and cheaper to run a simple T5 rig with either 2 or 4foot Agromax Pure Uv / Reptilsun 10 bulbs.