P.L. Light has already released the 2nd version of Hortiled LED’s in Europe - Lighting geeks, get ready 
…the next gen will have 3.5 umol/J efficiency…can hardly wait to get my hands on these fixtures.
The current ones were released in 2016 and max out at 2.7 umol/J. The new versions have not been posted to the US/Canada website yet. Currently only available in Europe for 400v circuits…the efficiency may not translate to 120v I guess?