I understand, I wasn't questioning just trying to catch up to the latest ideas being put forward.DaveJonesFan wrote: ↑Sat Jul 21, 2018 4:23 pmYeah it's always just trade offs with stuff like that. Series circuits can push voltages too high and increase risk for danger. They can limit the ability to use the absolute maximum wattage of the drivers in some configurations, such as these hypotheticals. The expandability option to add more identical emmiters onto the existing circuit later down the road and increase system efficiency that way is a great perk for CV. Thermal runaway is a risk, but can be managed with proper cooling and the use of high quality, low design tolerance products that are already popular within the community because of their efficiency, to help mitigate that risk. Failure of a component in the circuit also yields differing circumstances.
The driver such as the one I ordered, HLG-120H-54A, provides up to 2.3A to a single board on the circuit, which with 1 board is it series or is it parallel or just wired in I guess. The CC versions available of the 120H series only go up to a C1400 version with a 54-108V range. So you could run 2 boards on it in series well but relatively low power to each board. One board wired up to that driver would only be able to utilize half of the driver's maximum power, however, so it's just a silly choice for us. That's why we're all testing the single boards with the CV option in a bit of expanded detail.
I totally see the advantage to running CV , I was looking at the Mau5 pucks a bit and saw they were recommending CV drivers. Anyway , for 150 bucks and free shipping , it's not a bad deal.
I would be willing to give it a try. I just built a 12x12 room for my grow and have a bunch of clones I need to move to a veg spot.
The new board did seem to heat up faster and have more heat. But it doesn't have quite the air flow as the other boards. Still stays cool enough to touch for extended time. 
