I knew some of them were, maybe the 320 and up? I have been working with the smaller drivers lately and none of them are rated dim to zero, or none that I’ve been using anyway.
I’ve only used a reflector once, it was little Angelina. You actually lose some photons with them installed, so I try to limit their use to when they’re needed. Like going with an efficiency build running cobs at like 700-1000 ma. Running the 50 watt cobs that low requires them to be in 10-12” range on center to keep canopy levels even. The one downfall of running the vero at 75 Watts is that it kind of upsets that balance. Provided you have them at like 12” on center, I think you’ll like them more at around 18” height without reflector. It seemed to be about the best balance of everything. In my opinion, adding reflector would’ve probably meant raising them more and having to tighten up cob spacing a little. But those were eyeball opinions from plant response. The correct testing tools may say otherwise.
I’m definitely curious to see how your testing turns out. The strength of the vero has always been squeezing some extra coverage out of a couple less cobs on budget type builds. I’ve never really seen anyone turn and burn with them.
What’s the story with going with the 240, you would be dropping them down to the 1400-1750ma range?