I have an array of 140 WS2812B leds and I have 3 different powers supplies:
1 - a 5V breadboard power supply powered by a 9V 2A wall wart. 2 - a 5V 2.5A wall wart 3 - a 5V 10A wall wart
When used on the LEDs, #1 works fine but I am having issues with #2 and #3. When these are used the LEDs do not act as expected, not all turn on and the colours are random.
I have tried different amounts of LEDs; 10, 20, 40 and I get the same results as above.
What may be the problem with #2 and #3 power supplies? What kind of PSU should I be looking for to power RGB LEDs?