LED help

sghioto

Joined Dec 31, 2017
8,634
That doesn't make sense.
Disconnect all 3 RGB wires from negative.
Do all the LEDs come ON and if so what is the reading on the meter.
 

Thread Starter

Thedax

Joined Oct 22, 2025
148
All leds light when reconnected to power, I wasn't sure if i connected the black wire straight to the blue and green when I was testing.
 

sghioto

Joined Dec 31, 2017
8,634
That's good.
But need to redo the test.
Connect the G and B RGB wires to negative, leave R not connected or what's also called "floating".
Only the RED LEDs should be ON, read meter.
 

sghioto

Joined Dec 31, 2017
8,634
Good!
Now connect the R and B RGB wires to negative, leave G not connected.
Only the GREEN LEDs should be ON, read meter.

Finally connect the R and G RGB wires to negative, leave B not connected.
Only the Blue LEDs should be ON, read meter.
 
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