first question would be: What is your goal?
- Do you intend to save energy/money? (e.g. optimizing Total Cost of Ownership)
- Do you intend to get ready for future (take over controll of all relevant environmental parameters)
If you want to save energy/money Fluence, BIOs and Illumitex would probably be a good choise. At the moment VYPRx PLUS from Fluence seems to be the winner in terms of Total Cost of Ownership. Thats probably the reason why OSRAM has bought them couple of weeks ago…
The problem with those solutions is that you will get a fixed spectrum. Of course it will work but you will loose the biggest advantage of LED lighting! Because a tunable spectrum allows you to take controll of several processes inside the plants.
If you want a tunable solution Heliospectra, Lumigrow, OSRAM (Zelion), California Lightworks and GrowFlux are in the ring!
What I would do before investing money I would allways try out relevant fixtures in advance!
If you provide me more informations about your room and goals I would be glad to help you to decide.