I am currently working on an Arduino project and I want the Arduino to control a 5-meter long LED strip, which (as the producer said) needs 18 A and 5 V.
My chosen cable is this one.
I heard a lot of confusing things like powering it from two sides.
What do I do in that case? Do I just put an 18 A at the end, or do I just ram another power cable in the power line? When I need to power from two ends, do I supply both with 9 or 18 A?
I know that's a lot of questions, I'm new to powering.