If I want to run mini LEDs that require a voltage of 3.4 - 3.6 V at 20mA, what sized resistor do I need to put inline to run them off of a 5V source?
How about minis that require 1.6 V @ 20mA? For a 12V system I was told to use a 510 Ohm Resistor, but how about for 5V?
Also, how and where do I solder the resistor in? Thanks!