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Now that I have calmed down :oops: @Frank Cannon has just finished a grow comparing our new High Light 420 with the old High Light boards. The new High Light 420 boards finished 5 days earlier for an 8-week strain and produced 18% more yield. Everything was grown the same: same grower, room...

Hey dbz, I'm not sure where you're getting your figures from but the original High Lights were A$720 for 450W if you included the driver, wiring and everything else. And that was after they were discounted. The new 470W plug and play system is exactly that: buy, assemble (no wiring required)...

Well again, it's hard to know without proper information. What medium are you growing in? What nutrients are you using (1 or 2 part? Brand?) It looks like you're using coco with a mix of hydroton on a flood-and-drain table. Are you top feeding with drip lines? Flood and drain is notorious for...

Hi mate we're waiting on LED Teknik to supply us the IES files. Trust me, we've been nagging for some time :roll: To answer your question it is not a linear drop-off as LEDs are less efficient at higher currents – although the new boards do not drop off as fast as the old boards as they have...

Hi mate those photos look like the onset of a potassium deficiency. Are you using a lot of Cal-Mag? Because calcium can lock out potassium and I see no signs of either a calcium or magnesium deficiency. I can also see some evidence of light stress but unfortunately I don't know what light you...

You guys are lucky to have such a great relationship with Samsung. "Lucky" probably isn't the right word, as I know you've worked hard with them and they have had the foresight to run with you guys. Nichia has been good to us – we always get good bins and great service – but they just don't seem...

LOL! I'm not saying anything :lol:

1€ per watt with full spectrum supplemental UV and Far Red – that is impressive! You are fortunate to be able to build such a strip light.

I know there have been a few lively debates in these forums over strips vs boards, but all I'll say is it really comes down to how many boards you use. For example, have a look at Frank's grow a few posts up. He's got 8 panels in a 4.5' x 4.5' and has very even canopy lighting. You can do the...

Made in Australia. Complete plug and play. These lights work. And there's 10% off for RIU members. Sorry to spam, but we stand behind our results. https://growlightsaustralia.com/product-category/plug-play-grow-lights/

They're already for sale on our website in kit form but if you're interested in just the boards PM or email me at [email protected] https://growlightsaustralia.com/product-category/plug-play-grow-lights/

Not yet. I've posted up some spectral and efficiency readings and a few other bits of info, but we've been mad busy trying to get the new plug-and-play kits ready and I didn't want to start anything until we were able to deliver. We've done a lot of LED testing with LED Teknik over the past 12...

That was a test spectrum. The final spectrum is the one below. We made the final decision based on the results we'd seen with the original High Light boards as well as the compromise between spectrum vs efficiency vs CRI. The final High Light 420 board has a few percentage points more blue than...

There are many ways to skin a cat just as there are many ways to achieve 2700K. This is close to 2700K and CRI80 but is not like typical 2700K CRI80 LEDs on the market. Here's your typical Samsung LM301B 2700K CRI80 – hardly any far red, no UVA and no near-UV under 430nm either. I think I...

If you're wondering, then perhaps refer to the first page of this thread if you haven't already. We're also doing another series of grows at the moment comparing the old High Red boards with 6% UVB Arcadia tubes vs the new High Light 420 board. This is @Frank Cannon 's grow. Originally he was...

Up to a point. But when you already have an even 1000 PPFD – or whatever target canopy intensity your strain responds best to – what do you do after that to improve yields and/or cannabinoid content? Surely if you are an old-school grower you have seen the difference in yield and quality...

Same number of photons, very different looking plants. This is a good link, but it really only scratches the surface: https://www.valoya.com/ratios-in-the-light-spectrum-a-brief-overview/ I also note that Valoya is quoting the same study that we used to develop the first High Light with added...

In my opinion it is – up to a point – and then it isn't. Photons = photsynthesis. But Spectrum = photomorphogenesis. That means photosynthesis can be tuned via spectrum. Two good examples of this are the Emerson Effect – which can accelerate photosynthesis with the same number of photons...

Neat job!

OK, this is will probably blow your mind, but there is no such thing as time for a photon. A photon may take 8 minutes to travel from the sun to the earth, but the photon does not experience this time frame. As soon as a photon is emitted it is absorbed – whether it takes millions or billions or...