I have a power supply form a printer (actually I have 3 :) ). The PSU is 24V, 1.25A. I want to connect some COB LEDs to this PSU without additional electronics. The idea is that the LEDs requires no driver if they are under-volted (am I right?).
I have found some cheap 10W rated 32-34V. I use 3 of them in parallel.
- Will they light up at 24V? (I know, it is more like a "guess" question but no other documentation is provided with the LED)
- There are COB LEDs out there that are "natively" running at 26V or 32V is the minimum voltage for a high power LED?
If question 1 and 2 fails, how to drive the LEDs with minimal electronics (using the PSU I have)?