I have a WS2812b addressable RGB led ribbon that is 5m (150 RGB leds). I purchased a 5v 10amp power supply to power it; however, whenever I try to use it to power the LED strip the leds start flashing colors like crazy. Is there a reason I would be seeing this behavior or is this a sign of a bad power supply?
The setup is very simple, the data line is coming from an Arduino Uno, the voltage and ground are from the power supply. The program is just one of the sample ones with FastLED library and works "fine" when just powered by the arudino's 5V pin.