I need to connect half a dozen COB LEDs (36V, 300mA). I can only connect them in parallel, not in series, because of wiring considerations.
For them to all be at the same brightness, my understanding is that I need one constant current LED driver for each. But could I use instead one Constant Voltage driver at 36V, 2A and one resistor of 120Ohms / 12W for each COB?
Will the system be prone to thermal runaway and will I get different brightnesses due to slight manufacturing differences of the COBs?
Also, if I want to dim all LEDs at once, will it work if I put a PWM dimmer between the constant voltage driver and the LEDs?