I use whatever resistor equalises the brightness, when using different colours - blue is super bright and yellow is dull -.
You might want to get a Decade Programmable Resistor Board, and suck-it-and-see.
I use whatever resistor equalises the brightness, when using different colours - blue is super bright and yellow is dull -.
You might want to get a Decade Programmable Resistor Board, and suck-it-and-see.