uvb

UV-B has not shown any worthwhile benefit to cannabis from a handfull of recent studies. None. So please help me spread the word: UV-B increasing THC is bullshit. https://www.frontiersin.org/articles/10.3389/fpls.2023.1220585/full

Hello all, pretty new grower here. I'm not interested in growing for profit, just personal use. This is a picture of what I have so far. I followed a guide online from growweedeasy.com . Basically I'm trying to figure out how I can add a UvB light. I am interested in this being as natural as...

i recently discovery some mild PM on my plants a few days ago and since i have add 3 uvb lights under my 4x12 canopy as recommended by my hydroponics store,i just start week 5 of flower. (No spray for me) I had original though i creates the PM from A 15% humidity swing but i found the source...

In it to win it with @GeekBeast #geekbeast . - it took about 10 days to receive (shipped from china) well packaged with hardened cardboard. Nothing broken. -Contents; 2 ratchet hangers (metal gears :D), 2 wire short hangers, daisy chain cord, nice aluminum frame. - I'll be using this uvB the...

Hi RIU Members :) On the occasion of Halloween, We will find two testers for our: GeekBeast UVB 310. Prize: GeekBeast UVB 310 *2 More details of the prize can be found here: https://https://geeklight.en.alibaba.com/custom_page/Giveaway.html Rules: 1. Follow @GeekBeast 2. Like this thread 3...

Why UVB? We have been working hard to find a way to increase the THC content of plants. In our previous products that contain UVA spectrum, we have not received positive feedback that UVA can increase the THC content. Now UVB is our only option. We found some fluorescent UVB and LED UVB lamps...

First run with white widow photo. Beginning of 9th week after first flowers. 11 weeks after 12/12 flip. Trichs about 80% cloudy and maybe 2% amber on buds.

https://www.pnas.org/content/102/50/18225

Took awhile but I’m back to hydro. Got 8 cuts nicely rooted and they’re all pretty even. Same setup as before with the addition of 4 UVB bulbs. Last run I didn’t post exact weights because I feel I neglected HLG’s side a little more. But Amare won that round by about .5lbs and with the whole...

Well, ...Hi all, you may remember a user called STELTHY ....well...10 years has passed, ....AND I AM BACK Ive left it so long since my RIU acc. was hacked and I lost a shit ton of pics over 130 pages of journal entries.. And in true STELTHY style I am once again putting more thought into my...

Hey guys hope this hasn't been covered. Im running California lightworks Solar System UVA/UVB https://californialightworks.com/products/solarsystem-uvb and its working to bring out the trics. I currently have it running about 3 hrs at days peak. My question is now that I am in the last 2 weeks...

Newbie here! Age: 1 week Soil: Coco Coir 1.8 (5 litres) gallon Light: It's winter so UVB reptiles 30w 2 meter distance (UVB bc it grows faster than led and, it's for reptiles bc the light is quite like a sunlight that's why) or when sunny then Sunlight bc of high bills (from closed Window!!)...

after my last grow went south due to a family emergency, I finally got things rolling again. 5x5 tent Amare SB800 (instead of HLG sabers this time) Autopots Megacrop, sweet candy, kelp extract Mephisto and heisenbeans seeds 5 from heisenbeans. Gonna go in another tent later in 4g autopots. To...

Alright finally made the move from dwc to coco/autopots. AN 3 part nute line has been good but so many different bottles and the PRICE is whats turning me to megacrop and the extras. Dwc is great but it’s become too much work for me now. I’m also still a pretty crappy grower but am diving in to...

Ive been interested in adding UV to my grow setup as Im currently running 3000k 90 CRI COBs and am not getting much blue or uv during flowering and would like the benefits of increased potency and terpenes. What would be the best way of adding UV light to a 3x3 tent ? Ive mostly seen mentions of...

Hey guys, so Im looking into getting some supplemental lighting to add to my set up and had some questions. Im looking at both the Exotic Supplement board and Emerson board from RapidLED. Considering doing a DIY supplement light though as Im not sure the benefits of the IR spectrum that comes...

Welcome to a side-by-side dwc grow in 4x4s with clones of four strains: Green Crack, Jack Herer, Original Glue (GG4), and Trainwreck One 4x4 will have two timber 48sams (equiv of eight hlg288s) with supplemental red hlg35, growbright far red bar, t5 uvb, and CO2. The other 4x4 will have six...

Hey guys I'm going to be doing a little experiment and wondering if anyone has any input. I have a UVB 10.0 high output bulb that I used for lizards I use to breed. I read awhile back that there was very little info on using one on a cannabis grow but a few articles I found said that the bulbs...

!!!! Before you start reading this thread I recommend reading this security warning! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!! Ultraviolet radiation...

So I've read various posts across the forums of various people using specific spectrums to perform specific functions, however, I have not seen much of if any part numbers or manufacturer information if anyone is interested in sharing this information would be highly appreciated by all some of...