I have a few COB LEDs laying around, but unfortunately I don't know the exact model anymore. Hence I can't read their data-sheet.
However, I would still like to use them. I own a good multimeter, and figured it might be possible to use it to determine some characteristics of the LEDs, so that I can figure out what driver to power them with.
Can you recommend to me a certain procedure to do this, that would allow me to find some "optimum point", where the risk of damaging the LEDs is relatively low, but where I don't have them running way under their potential? When I talk about "risk of damaging", I refer to the risk of damaging them during operation - if I happen to destroy one or two during the initial measurements, that would still be worth it.
I found this thread that treats a related question, but there the topic is LED-panels, and I have COB-LEDs, so maybe there are some differences..
I also know the driver which I used to power multiple of them in series - it was the HLG-185H-C700A - but I don't know the exact number of LEDs I used to power with that driver (might have been btw. 6 and 8 I think). However, what we can conclude is that the operating current of the LEDs is 0.7A. The reason I won't use that same driver again is that I don't want to run as many LEDs as I used to.