The proof is in the pudding, as they say, and so of course all the claims in the world are just that - claims - until put to good use. To that end, these boards are being scientifically tested as I write, and we will have accurate umol/j figures for them soon. No speculation, just real figures.
Some of these boards have already gone out to test growers - some of whom are using supplemental UV and some of whom aren't. Preliminary PAR mapping has been promising with 1000 PPFD at 24" using eight boards in a 4'x4' with even coverage throughout the canopy using a total of 670W.
You can see the results here:
https://www.rollitup.org/t/the-monumentally-epic-knockdown-dragout-take-no-prisoners-slapdown-aussie-high-light-vs-hlg-288.988144/page-4
In a 3'x3' open configuration (below), two boards running at 345W total is giving a fairly even 950 PPFD at 18" without the aid of reflective walls (and tested with no overlapping light from the next station).
In addition to
@Or_Gro's head-to-head against HLG's QB288 + red supplement, and QB96 boards, we're also running them against HLG's QB324 V1 (mixed CRI 80/90 3000K LEDs).
In this configuration, you can see two High Lights running at 345W (360W at the wall) vs two HLG QB324 V1s at 400W (420W) at the wall for the same PPFD figures at 18" - however, the HLGs obviously don't have the same even footprint, as the boards are smaller.
View attachment 4325480
High Light vs HLG QB324
View attachment 4325481
The boards and heatsinks are easily connected to each other using existing holes and T-bar or L-bar extruded aluminium with 3/16" screws. Push-in connectors are designed for use with solid wire 18AWG.
View attachment 4325482
The layout of the UV LEDs is restricted by the circuitry (the LEDs are not typically connected in series, but are grouped together in parallel/series strings), but testing has shown a very even spread with no spectral change from one end of the board to the other at 12".
View attachment 4325483
I guess one question that hasn't been answered yet is, are these available and how much?
There was an initial production run of 75x 3-colour and 21x 2-colour boards and about a third of these went to existing growers who were part of the research and development. Boards have gone out to the US, Germany and locally here in Australia.
Yes, there are boards and heatsinks available. But at the moment, this isn't a commercial venture - the boards were specifically designed and built for local growers who wanted them (myself included) with sales of any left-over boards going to offset the cost of development and production. If there's further interest, there may be other runs.
If you are in the US, then the bad news is shipping will be the killer. If you are in Oz, NZ or possibly Europe, then I'm happy to receive PM enquiries and I can get you a price on boards and shipping (they will be cheaper than other offerings from OS).
As I said, this isn't really a commercial venture - we just built a run of boards that we wanted for ourselves, and there are some left over for anyone else who is interested in trying them. I just thought it was time I explained what they were as other growers are starting to showcase them at RIU.
If anyone has any questions, I'm more than happy to answer. Just bear in mind I am not an electrical engineer - I am a grower - and I may need to refer in-depth technical questions to our engineer. Everything else I can pretty much answer.