I am planning to install series of APA102 addressable RGB LED strips along the perimeter of my garage (just below the ceiling, not visible directly but illuminating the area where the ceiling and wall meets). The total length of the run (interrupted by some doors and other objects) is about 36 meters.
I am looking how to power it. It comes in reels of 5m, it appears that at full brightness it is still not enough to be powered just at both ends, as the white brightness starts turning amber after about 2 meters, returning back to white at the 4th meter. So, I plan to supply power at every 2.5 meters.
Regarding the APA102 clock and data lines, there should be no problem, as the signal is fresh at every output. But I am afraid if just running a 5V power line along the strip, supplying it at 2.5 meter periods, will be enough, as the voltage would drop along the power line that goes up to 20 meters (assuming I have the power adapter somewhere in the middle). How I can ensure stable 5V supply along the whole route? Just throw more adapters at it, connecting, say, 3 of them them in parallel, at 6th, 12th, and 30th meter?