Meanwell makes dimmable drivers and with more than one type of dimming, internal, external and PWM that works with Ardiuno. Autocobs were built without for simplicity. Dimming on a large fixture is a good idea, on these single cob lights, its a waste of time, you want to have to mess with 4-8-16 lights to dim each? There is an easier way............ raise it or lower it to adjust the light! Sometimes, simplicity is the best answer!
And migro is overstating its specs, I call bullshit! "PPF/Watt: 2.2 µmols/watt" ohh sure, but NOT at 100 watts, no cob made is that efficient at that power level, more like 1.7 to 1.78 at best. They are stating the ppfd @ 25-35 watts, NOT at rated power. Its easy to lie with statistics to those who don't have a working knowledge of how the specifications work.