Ok, that makes sense. Side question, this driver requires you to purchase a separate potentiometer yeah? Or is it built in? And also, does this mean the FV of the COB is adjustable or do you need to run it at a certain fixed FV depending on model?
yes, you need to buy a separate potentiometer with the driver you specified, your list has ten of them. You can gang each Frame (three drivers) on one potentiometer, but I believe you need a different resistance value to do it. The 0 to 100K pot is for one driver only. I think
@sixstring has ganged up drivers on one pot.
The forward voltage rating is fixed on these COBs. The Vero29 chips do have a variation on the forward voltage depending on the constant current driver you want to use, unlike the Cree COBs. For instance:
BXRC-35E10K0-L-2 (Vero29 3500k 80CRI)
drive current forward voltage
500ma 35.1v
700ma 35.6v
1050ma 36.4v
2100ma 38.0v
2800ma 39.0v
3150ma 39.5v
4200ma 40.4v
BXRC-35E10K0-D-7X-S (Vero29SE 3500k 80CRI)
drive current forward voltage
1050ma 35.4v
1400ma 36.2v
2100ma 37.6v
3150ma 39.5v
4200ma 41.2v
These values are right from the Bridgelux datasheets
you do know that using a constant current driver, you will need to wire the COBs in series, not parallel.
if you wanted to wire them in parallel, you would use a constant voltage driver instead.