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I agree. And I have tried to touch on this above. But I would still be interested to know how you quantify your results. With regards to our spectrum, we did come up with it ourselves. There are not many (if any?) manufacturers doing what we are doing with near-UV. At least there weren't when...

That is what we are trying to prove. That you can get similar effects using UVA or near-UV to UVB. The advantages are obvious: less energy required to make near-UV, less potential damage to plants if you accidentally overdose, longer life for LEDs, and less risk to humans working under them.

Hey Kassiopeija, the green hump is a function of the white phosphor LEDs we use, mainly the Nichia CRI90 2700K which has a dip between 530nm and 560nm, as well as the Seoul Semiconductor CRI95 6500K, pictured below. We mix this LED in for the near-UV and cyan boost, but it also has a little...

It is not just UVB that stresses the plant, but also UVA, near-UV and blue light. Studies have shown that all these spectra have the ability to increase cannabinoid content, which is what we are exloring in this thread. I am not sure if you have read the entire thread but we have covered some of...

Hi, 800-1000 PPFD at 12/12 is typically what a lot of growers here are using, although it should be noted that spot readings of around 1000 PPFD often translate to an average 800 (more or less) PPFD across the entire canopy depending on light spread and uniformity. Now are you referring to DLI...

Yes, we noticed that study was done at 150 PPFD vs 800-1000 PPFD typically used for growing cannabis. Also, lettuce is a Long Day plant and cannabis is a Short Day plant, so their flowering cycles are manifestly different. Still, I would like to hear @twistedwords theory as he says he has...

Interesting article, but unfortunately most of the growers here are not growing lettuce – they are flowering cannabis. What is the point of adding more blue during flower and what advantage does it have over near-UV (400-430nm)? Have you done any cannabinoid testing to confirm your theory...

Hi, our High Light UV boards are 14.3% blue. Is that what you were talking about? I take it you are referring to "maximum 15% blue" in flower? We also tend to agree that 10-15% blue is optimal for flowering based on some of the studies we have seen.

We've got individual Buddies now on sale. We'll be adding kits this week once the drivers arrive.

If you look at the UVR8 receptor peak, it appears Pfr and Pr both follow it. I'm not sure if they peak at the same wavelength as the UVR8 receptor, and the lines cut out because that's the limit of measurement, but that's what I was alluding to (285nm). Poor choice of language on my part.

Flowering in short-day plants is triggered by the Pr : Pfr ratio at the end of the dark period. If there is more Pr – which has been converted from Pfr during the dark period – then that indicates a long night and triggers flowering as a photomorphogenic response. I would think that, looking at...

Hi, sorry for not replying to you earlier but we've had a busy couple of weeks and I haven't been posting much lately. We would recommend using it full cycle. 390-410nm is pretty much in the visible spectrum and does not carry as much energy as deep UVA or UVB, so we'd expect it to have similar...

We are back in stock and currently shipping backorders. No shortage of anything at this stage.

Very nice mate. Super healthy looking plants.

According to Teknik they're ready now and on their way to Australia. As soon as we get them we'll let you know!

Nicely done! What driver are you using and how many strings of Buddies are there? Looks like two strings or 30W is that right?

This is always an option. You can also pair one board with a heatsink and drive it hard – over 200W – at first, and then add a second board and drive them a bit softer for better efficiency. That's why we designed these boards to be driven hard or soft. You get better bank for buck running hard...

Yes always the best place to start.

But you would also more than double the power, and increase your yields by at least 50% over a SF-2000. Two High Light boards can be driven at up to 450W, or about 470W from the wall. The SF-2000 will draw 200W from the wall, which is around 170W at the boards. That's 85W per Spider Farmer...

Here they under natural light without the flash. I've been told they will be harvested in the next couple of weeks.