user26074: I have a RGBW LED but I don't know how to identify the negative and the colors pins.
I tried different combinations with an Arduino Uno but it never produce light.
I never used it so I am not sure if its name name RGBW LED.


user32827: Brand Name: LEDGUHON
Model Number:JH-4RGBW14G



user4143: The pin with a + is the anode of one colour. The three next to it are also anodes.
Each anode is connected to one LED. The cathode of that LED is connected to the pin directly opposite the anode.

26074: <p>I have a RGBW LED but I don't know how to identify the negative and the colors pins.</p>

<p>I tried different combinations with an Arduino Uno but it never produce light.</p>

<p>I never used it so I am not sure if its name name RGBW LED.</p>

<p><a href="https://i.stack.imgur.com/DGJZi.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DGJZi.jpg" alt="RWBW LED"></a></p>
 32827: <p>Brand Name: LEDGUHON</p>

<p>Model Number:JH-4RGBW14G</p>

<p><a href="https://i.stack.imgur.com/5ExcC.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5ExcC.jpg" alt="enter image description here"></a>
<a href="https://i.stack.imgur.com/tpqS2.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tpqS2.jpg" alt="enter image description here"></a></p>
 4143: <p>The pin with a + is the anode of one colour. The three next to it are also anodes.</p>

<p>Each anode is connected to one LED. The cathode of that LED is connected to the pin directly opposite the anode.</p>
