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DIY led growlights - Builds and Results

PCBuds

Well-known member
also using UV. I killed thrips with a UV lamp from below so they could go to the lamp and die. I
Very very nice! Love the uv application, i do led for uva and uvb

I've been thinking about UV for a while now.
I've learned that you can sterilize water with UV.

Does anyone know if a UV water sterilizer with work in my grow?
Maybe if I turn it down for the plant?
Or is it the wrong wavelength or something?

If I can get a UV light that can work double duty, then that would justify the expense.
 

PCBuds

Well-known member
If you do it right you can get tripple duty out of it. The plant dies too.

A dose of UV that is sufficient to deal with thrips is deadly to plants.

Well that works for me.
If I can turn it down to a non-lethal dose then I can feed the plant and kill bugs.
If I can't turn it down, I can use it to sterilize my plant just after I harvest it.

I've had problems with mold, and I think it might kill the mold and it's spores?
 

Orange's Greenhouse

Active member
Well that works for me.
If I can turn it down to a non-lethal dose then I can feed the plant and kill bugs.
If I can't turn it down, I can use it to sterilize my plant just after I harvest it.

I've had problems with mold, and I think it might kill the mold and it's spores?
If it kills bugs, then it kills the plant too. UVC is also causing cancer, burns your retina etc. It's nothing to fuck around with.
There are "UV insect killers", but they only use violett/blue light to attract the insect. Then it's either burned or caught in a sticky trap. They obviously only attract flying insects.

Sterilizing your plant after harvest doesn't work either. It only works on the part that is illuminated. But the inside, where the mold starts. It's in the shadow, so it's not sterilized.
 
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Rocket Soul

Well-known member
Well that works for me.
If I can turn it down to a non-lethal dose then I can feed the plant and kill bugs.
If I can't turn it down, I can use it to sterilize my plant just after I harvest it.

I've had problems with mold, and I think it might kill the mold and it's spores?
Uv for sterilization is uvc, not for plants and humans but great for getting melanomas. Most reliable uv approach ive tried was 2:1, 400/365nm split. If works well on smells and taste and general plant health, secondary metabolites etc. it wont kills bugs, it will make the plant more healthy, less attractive to bugs and more hardy in resisting. But please guys lets try to keep this thread for builds and buds grown by them. Or how to build instructions and such. Stuff that shows of why to diy or how, and the results of your diy builds; everybody loves to see frost. Anything else and we tend to just chitter chatter, get of subject and eventually someone starts flaming the thread. Trust me, thats why RIU ledsection mecame a craphole. PCB, please hit me up on pm or ill chat uv on your thread.
 

PCBuds

Well-known member
But please guys lets try to keep this thread for builds and buds grown by them. Or how to build instructions and such.

Here's some pictures of my last plant just before harvest,..



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Yeah, I know.
My plants won't stop foxtailing unless I turn the lights down.

I'd rather just keep everything at full blast until the end.

I could have trimmed off all the buds that were foxtailing, but I was too lazy so I just smoked it all. 😂


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PCBuds

Well-known member
Some pictures from the start of the grow,..


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Her first day of LST (Light Stress Training)

She had a full day in the sun and was quite tired with a bit of heat stroke. 😂


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She got over it and learned to love suntaning. 😂


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Time to crank up the lights and switch nutes to stop her stretch before she runs out of space.


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I only went to 309 Watts with this plant.
The others were closer to 500 Watts.


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Filling in,..


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Frosty Picture of a two ton cola. 😂


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Rocket Soul

Well-known member
Some pictures from the start of the grow,..


View attachment 19087241 View attachment 19087242 View attachment 19087243


Her first day of LST (Light Stress Training)

She had a full day in the sun and was quite tired with a bit of heat stroke. 😂


View attachment 19087244


She got over it and learned to love suntaning. 😂


View attachment 19087245


Time to crank up the lights and switch nutes to stop her stretch before she runs out of space.


View attachment 19087246


I only went to 309 Watts with this plant.
The others were closer to 500 Watts.


View attachment 19087247 View attachment 19087248


Filling in,..


View attachment 19087249


Frosty Picture of a two ton cola. 😂


View attachment 19087250

Fantastic work and in such a small place. This is exactly the type of work that shows off what you can do with diy approach; customize your light directly to you space but also how it can get quite messy, lol ;)
There are a few ways though to avoid mess and to anyone reading up on his thread (i will as soon as i can): with small voltage strips like this i usually recommend a series/parallel connection approach: set your self up with a driver that can handle several strips in series: for example with the low voltage of some of these bridgelux eb strips you can wire several strips in series (ive seen up to 10 with total voltage of 100ish): this really brings down the wire mess: its easier to have 5 strings going to your driver than 15. Pcbuds choose to work the hard way in a few ways with this build which only makes me respect it more; his power supplies had to be seriously tweaked for stable performance. This effort can be avoided by going for a modern power supply: meanwells CV drivers functions as a CC driver when voltage is lower than max which will stop some issues with thermal runaway.

When i get the time ill share my Bridgelux Vesta build which i really liked; built in some very nice spectrum and light spread control features into the design which im really proud of. Thx to PCBuds for posting and showing off what he done, and those are some stellar results, fantastic😍
 
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