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The obvious answer would be that if you are designing a flowering lamp specifically for cannabis, then it should be optimised for cannabis. Growers have already pointed out that a lot of horticultural scientific tests are done on leafy greens with a focus on increasing leaf mass instead of...

Well yes, the idea is really to produce a spectrum with no holes in it and peaks in the right places where flowering plants can use them. It does appear though that there may be a point where you trade off dry yield for canabinoid yield by trying to balance the amount of red, blue and especially...

As a company, I would not only have to agree, but also point out that what you're suggesting is what we have been trying to achieve all along by providing a balanced spectrum with few trade-offs in terms of yield, essential oil production, efficiency and longevity. There is also usability and...

Again, that is possible. The Or_Gro experiment resulted in the non-UV tent finishing a week earlier with the same yields as the UV tents.

I would agree (that is exactly what happened in the earlier Or_Grow tests), even though most of the recent tests we did were quite close to each other. The six-month sample was deliberately included to see how the same strain aged. The other three samples were grown within two months of each other.

I hope it is fixed now. Green is interesting – we know we need it – but it appears that everything is a trade-off and we do know that too much green is detrimental to pant health (and can even kill some plants that would otherwise grow under red or blue or both combined), so it is probably a...

It's true. And this is what makes me wonder about 285nm, as there is almost none in natural sunlight and even then only the most minute part in high UV areas, such as the equator (admittedly where cannabis evolved). I'm sure you wouldn't need much of it to see an effect. But I'm not sure how...

No, as @wietefras said CBG is the precursor to CBGa (the acidised form) which is the precursor to other cannabinoids such as THC and CBD. There is a good amount of easy-to-read information here: https://darkgreensingularity.com/cannabis-production-science-research/ And here...

I've got tracking numbers for you guys. They came through today. I can only apologise for the delay, but there's not much we can do about freight these days as it's a bit of a nightmare getting stuff out of China. P.S. Emails sent

I'm aware that all the samples were taken from SCROG style grows, so I'd imagine that even if one came from the lower canopy, we're not talking about tall plants with a large difference in canopy exposure. But I would have to ask @Prawn Connery about this. It is certainly possible that there...

We have been reading up on UVR8 and while I would never profess to be an expert, the main issues we see with it are that 280-290nm is very strong and has the potential to do much DNA plant damage in a very short amount of time – as well as being dangerous to humans – and that UVB LED sources are...

We do have spectrographs of the CMH on its own and mixed with the High Red boards. CMH (2x 315W) CMH + High Red @ 5:2 ratio (630W of CMH, 240W of LED) These CMH lamps have a very good spectrum already and are proven performers, but the High Lights do add a bit more red and also fill in the...

If UVA/B and near-UV play their part in photomorphogenic response then that's probably what you would expect, as shorter wavelengths don't penetrate the canopy as much. So perhaps it's a simple as that.

It is possible. In the Or_Gro test three of the tents with supplemental UVB finished at the same time, but the High Light tent with no UVB finished a week earlier. Cannabinoid and terpene tests showed the High Lights with near-UV were up there with the other tents (second overall) and the yield...

Those plants are absolutely beautiful mate! I don't think our lights can take the credit for that! Well, maybe we can take some of the credit ;-)

YES! We are back in stock! :P We picked up the new (full) run today and they are ready to go out. Everything is in stock now, including single heat sinks.

So we have just had confirmation that the UVB sample provided (Sample A) went full term to eight weeks of flowering and that there is no possibility it was taken early as the gentleman who grew it keeps a grow diary and calendar. So we're not sure what to make of the results, but we now know...

We haven't had anyone use that configuration yet. But it would definitely give the 400-430nm region a boost. Initially our thoughts were that the reptile bulbs would provide enough UVB/UVA to make a difference without the addition of near-UV. However, after the Or_Gro test samples we learned...

Yes, you are correct. This is probably what the lab technician was saying, as he mentioned it was the precursor to both THCa and CBDa. It appears CBG is at its highest concentration at about six weeks of flowering into an eight-week strain. I have not heard back on whether this sample was...

Yes it's not cheap I can tell you that! But with this test we wanted to see if there was any noticable difference in the amount of UVB, UVA and near-UV, everything else being fairly equal. You could say the High Red board is the control, as all the tents had similar spectra but with various...