Review on 💧 IP68 Waterproof ALITOVE 50pcs DC 12V WS2811 Led Pixel Black 12mm Diffused Digital RGB Addressable Dream Color Round LED Pixels Module by Kyle Omaha

After some tweaking I was able to get them to work as advertised. I had to ground the Arduino to the power supply and the LAST LED bulb to GND. Here is my documentation, good luck! NUM_LEDS); FastLED.clear(); FastLED.show();}void loop() { if (1+1==2) {showProgramCleanUp(2500); delay(500); SetRed(); delay(100); showProgramCleaning(2500); } Else { showProgramCleanUp(2500); } } void setRed() {for (int i=0; i<NUM_LEDS; i++) {leds[i] = CRGB(0, 9, 255); } FastLED.setBrightness(255); FastLED.show();} // turn off all LEDs void showProgramCleanUp(long delayTime) { for (int i = 0; i <NUM_LEDS; ++i) { leds[i] = CRGB::Black; } FastLED.show(); delay(50);}edit: This D3 wire goes to the LED, not the battery. :D