I'm looking to run four 3 W high-intensity LEDs in a series circuit using a 12 V battery, for an outdoor lighting setup.
My intention was to use an adjustable buck/boost converter, as I've used to run a single 2 W LED. But I've heard that if I supply too much current I'll ruin the LEDs.
The LEDs each have a max. forward voltage of 4.5 V and a max forward current of 750 mA, so I assume I'll need to supply around 14 V and 600 mA, to run the LEDs at a little less than full capacity (for longevity).
I'm new to electronics, but I think I can run these with an adjustable buck/boost converter with the faciltity to adjust current too, such as this one.
Am I understanding this right?