Then gradually dial up or down the number (with a pot) to find the brightness you need
QuoteThen gradually dial up or down the number (with a pot) to find the brightness you needThis is a bad idea if you are using the pot as a rheostat (with just two leads). Unless you also use a fixed series resistor it's easy to burn out the potentiometer when you get down toward zero ohms. You are OK if you use both the 150 ohm resistor and the pot. Don
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