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We appreciate your support @Scuzzman We have something coming out in the next few weeks that may interest you. We've revised the spectrum with more UVA and a small amount more Far Red. We also have a new propagation spectrum that contains more blue. We have a few more things in the pipeline we...

@jimihendrix1 I have asked you politely to stop copy and paste dumping in this thread but you continue to do so. It looks like I am not the only one who is upset at your attempts to derail this thread. If you were posting constructive analysis or individual quotes to support a clear argument...

Hello, I see you have copy and posted lots of scientific information (some of which is 20 years old!) but I am having a hard time understanding what it all means. Can you please explain in your own words what these things mean? I'm sure we could all learn a lot from someone who understands the...

PM on its way (:

This is what we have seen also. Plants do not stretch under our spectrum and more importantly there is no excessive branching like you see under some blue-heavy spectra. It is worth noting that most of the horticultural lights we have produced over the years have had around 15% blue and over 50%...

I would agree that you use less electricity and have longer bulb life but UVB bulbs do not last long and LEDs are much more efficient so perhaps it is a false economy to think that a UVB fluorescent is better than an UVA LED if they achieve the same result? What I see @Prawn Connery saying is...

OK I take your point. I couldn't help myself. He didn't respond but I wasn't looking for an argument I just wanted to point out that UVA and far red do make a difference through both morphogenics and the Emerson Effect. There is a lot of dated information out there like the belief that high...

Sorry I missed this earlier. Yes the Nichia UVs are very powerful but perhaps not as expensive as you think. We get good prices on Nichia diodes because we use them a lot. We are not competing in the same space for Samsung diodes like everyone else so we can also request and receive top Nichia...

The interesting thing is that if you follow Shane (Migro) on Instagram, he posted a video recently claiming that UVA and Far Red "don't have any effect". It's at about 12:45 of this video: We obviously had a lot to say about that! However the Migro Arrays don't have any violet, UVA or Far Red...

That's a pretty strong UVB bulb. Here is an Arcadia 14% UVB reptile bulb for comparison. UVB fluorescent bulbs are all pretty much the same with the only difference being the amount of phosphor conversion. The Migro would appear to have less phosphor so that equals more UVB emission., so I'm not...

Did you have the CMH running during the test? There is no doubt that UVB works but it seems it all comes down to timing as too much exposure in our experience (based on ongoing tests) shows a negative effect whereas a small amount of exposure seems to net much better results.

We've just sent a couple of samples away comparing the current High Light 420 boards with a test board that had double the amount of UVA and violet (400-420nm). Hopefuly we'll have the results soon as we're working on a couple of things that may hinge on the outcome.

Plants will grow under almost any light – any photon in the PAR range can be photosynthesised. But not all photons are equal in terms or energy, photosythetic absorption or photomorphogenic response. For seedling propagation, UVA and blue light are known to increase root and leaf mass in the...

There is an old saying in drag racing: Speed Reliability Cost You can choose two . . . :rolleyes:

The XLG drivers are different to the ELG and HLG drivers in that if you try to exceed the rated output with the onboard current dial, the driver will go into limp mode and start flashing. You need to back off the current dial. That's why it is set at the factory. The external dimmer will not...

Yes, if you are using CO2 then many varieties can grow well under 1300-1500 umol/m2. With more photons synthesised at a faster rate, fewer photons are absorbed as heat.

Yes. We measured PPFD and it was quite accurate. I was skeptical at first because as you rightly pointed out if an ap uses a standard formula to convert lux to PPFD that formula only works with certain types of light with the same type of spectrum. It was a customer's phone and ap that we used...

You need to look at the specs of the Migro because it isn't comparable to the HLG-550: https://www.migrolight.com/product/migro-aray-240w-iiii-bar-light/ Migrow recommends 6-8 inches away and according to their PAR measurements that will deliver over 900 PPFD across the centre of the canopy –...

TLDR version: if you have a large fixture (lots of LEDs) turn them down and hang them closer. If you have a small fixture, hang it higher for better (more even) canopy coverage. We compared the Photone Ap against a $1600 hand-held spectrometer (Lighting Passport) and as long as you covered the...

Hey mate, if you need any help or advice at any time, just ask. We have a lot of good growers using our lights who would be more than happy to help. You can reach us here or email us directly at info@growlightsaustralia.com – we want everyone to get the best out of their lights. Lookin' good...