salmonetin
Well-Known Member
post movido... sorry
Saludos
Saludos
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think I might get 4 or 6 of them with driver and stuff from kingbrite.These QB20 are listed with a length of 890mm. They are a closer match in length to your fotops.
Thats the one. They have epistar and lg uv versions i believe.These QB20 are listed with a length of 890mm. They are a closer match in length to your fotops.
What do I need to open these files?Yeah, still have a few cheap solutions in petto.
There are several diy spectrometers available with pretty good accuracy. But its a little more complicated to evaluate the spectrum shots. Often you need to upload the pictures you have made to a website to calculate PAR numbers aso. and to get an SPD chart. Some use a smartphone cam others are made with a raspi web cam. Pretty sure if you find a siutable sensor you could also create one able to measure UV light too.
What we really need for gardening is an AIO spectrometer with 250-800nm measuring range, measuring spectrum, calculating accurate PAR numbers and showing μW/cm² of each UVA/B wavelengths at least in 10nm steps. Even a UVB meter tells you only how much light you have in the 280-320nm range. But some older reptile bulbs start with 305nm UVB and those would have only little effect even if you measure 100μW/cm².
If you check the spectrum it has remarkably little uv. Spike around 400 and 360 and then just a little more. It has full reds and infra red though. But its a lot of watts to just get very little uv.Anybody tested these out ? Seem would be better than the t5 reptile bulbs ?
MIXJOY 160 Watt High Intensity Self-Ballasted UV/Heat Mercury Vapor Light Bulb, UVA UVB Full Spectrum Sun Light for Reptile and Amphibian Use https://www.amazon.ca/dp/B07ZFKPFPJ/ref=cm_sw_r_cp_api_i_mPCfFb78VFEC9
Anyone?How long would you use the 395nm strip? Can I turn it on the full 12 hours during flower?
I have some UVA chips on my “Blue” channel at about 2 watts per sq ft. They are on with some other violets and blue up to 485nm. I have bleached bud and caused some damage with that channel on a couple of strains if I crank but IDK if it’s the UVA, some other frequency or the whole package.Anyone?
Thanks for replying buddy! Appreciate it!I have some UVA chips on my “Blue” channel at about 2 watts per sq ft. They are on with some other violets and blue up to 485nm. I have bleached bud and caused some damage with that channel on a couple of strains if I crank but IDK if it’s the UVA, some other frequency or the whole package.
Problem is the majority of UV users posting here claim success and increases in medicinal compounds. But none of them provide real data. Instead we see people falling back to broad statements, saying plants did/did not burn at x amount of watts for x duration. No precise measurement or defined sets of parameters. No lab reports to compare runs. Someone somewhere did some reseach so it must be good? rollitup is a brilliant place with lots of useful posts. It gets buried, because no one reviews and stickys info into some sort of index thread.Thanks for replying buddy! Appreciate it!
Well i can't crank mine. Its fixed at 30W. I'm about 2w per square foot of them too. 1 for each 4×4 of space.
Gonna just experiment myself, as it seems no one has any working experience with these Kingbrite UVAs.
Gracias!
i think some years back @captainmorgan actually has validated tests, i could be wrong though...Problem is the majority of UV users posting here claim success and increases in medicinal compounds. But none of them provide real data. Instead we see people falling back to broad statements, saying plants did/did not burn at x amount of watts for x duration. No precise measurement or defined sets of parameters. No lab reports to compare runs. Someone somewhere did some reseach so it must be good? rollitup is a brilliant place with lots of useful posts. It gets buried, because no one reviews and stickys info into some sort of index thread.
I would search posts by @Randomblame . I would get the datasheet for the diode or tube and try to work out the levels of output of that product. Usually expressed as radiant watts (do not confuse with electrical watts) or something. Then depending on wavelength, you could convert those radiant watts to a usable metric like µmols. And from there make your calculations to calculate duration/time.
No idea of veracity of information on linked pages. They are trying to sell product. But could lead you down a rabbit hole. That second link even indicates that whilst you can make gains, you could even lose some terpenes with uv use. Again, this is just information posted by a company trying to sell a product. Be wise to research other sources.
The MetaRail™ UVB+A Lighting Instrument — AgricUltra™ Advancements
The MetaRail is designed to deliver the industry’s most advanced UV spectrum and power density in the optimal ratio of UVA:UVB wavelengths to optimize plant attributes—such as improving flavour in strawberries and increasing THC levels in Cannabis plants.www.agricultra.comUVR8 Chemical Profile Shaping in Cannabis — AgricUltra™ Advancements
The potency of high quality marijuana increases in direct ratio to the amount of UVB light it receives.www.agricultra.com
Very true.oh yeah, but most of the time people get dismissive, when its something that goes against what they know to be the norm
Yes you can. When down to uvb that's when you give short term blasts so the plant does not build tolerances.Anyone?