I don't agree that Migro is top class. His build quality was never that good, was constantly seeing ppl complaining about imperfections on their lights when he was selling those ugly way too big and overpriced COB units. Sorry but someone had to say it. I respect Shane for his reviews but never been impressed with his lights, there is always something weird about them.
Looks like the Aray 3 is using Seoul diodes now. I kinda like that, hate how most everyone is just copying HLG both in the diodes they use and the shapes/arrangment of their boards. It's simply impossible to get the top bin Samsung diodes in large enough quantities as HLG takes most/all of them off Samsung. So why bother with the middle bins when you can just use something else that's probably a bit cheaper as well. I think most ppl would be really shocked to see how close most of these top LED companies are in efficiency.
So if you were wondering what the difference is. Shane used the top Samsung bins in his initial production run. Was getting a ppfd of 2.4µmol/w over the recommended area . Now look at this cocoforcecannabis review of the current production run that is on mid-range Samsung bins. Btw Shane collaborates and personally recommends this site for light reviews.
Migro Aray 4 240w Full Spectrum grow light test by Dr MJ Coco. Migro Aray Review, Video, PAR map, PPF & PPFD, Efficiency, Hanging Height, Harvest Estimates
www.cocoforcannabis.com
2.12 µmol/w
Errrrm. Yeah...
Looks like his real competition isn't the likes of HLG, Fluence etc. but Mars-Hydro/Spider. Personally i am kinda disappointed in these new Aray lights though not really as i've come to expect this from Shane. They have excellent light distribution but the efficiency just isn't there and they look flimsy and not at all quality built(super thin piece of bendy aluminum to connect the bars, hanging from the cable etc.). Can't believe i am gonna say this(i hate Mars) but i'd actually get the SP-3000 from Mars over the Aray 240. Prices are pretty much the same but the SP gives out alot more light.
Just my personal opinion.