Yeah, you dont know?
https://www.hydrogrowled.com
Shes claiming they'll be up to 2.8 ooohmols/J electrical efficiency using top-bin Epi-Somethings (stars/leds/ect..) ran soft, using twice the amount of diodes per sq' as HLG which was their base model to work off. She took anything & everything growers had concerns about regarding the HLG QB desighns & tweaked it to work with less density issues. Which in turn should allow for closer proximity growing.
Priced decent if they indeed do outyield Premium White fixtures.
Monochromatic diodes have always costed a chunk more then mid-powered whites, so i agree with the use of top-bin Epi's in order to keep costs where they are, (under $2 a watt). You're right, UnitFarm went top-line everything, making them to small to balance manufacturing fees probably. But we know what their spectrum generally produces if its he basic 450 + 660 8 think it is that so many burples chose to use.
Also the QB desighn is the absolute least expensive to create, package & ship. Also the fastest to produce. To me that means if HLG didnt have the price set so high (used as industry sandard now) then other following QB distributors could & prob would offer these at closer to $1.05 a watt. Or we could just put the high cost on NextLight for being the first to distribute the QB style.
Originally designed for the sole purpose of drop ceiling replacement upgrade lighting. I've seen them dated back to early "16" in a KFC remodel job.
Ill be putting x2 or x3 XB-300'S against the Bar-8. Veg - Flower next run.
Just gotta get another Bar'8 & the XB's first. The hard part.