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How do I calculate what resistors I need for RGB LEDs with 3.7V? - Electrical Engineering Stack Exchange
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3mm/5mm LED Light Assembly, LED Lamp With Resistor And Diode for General Purpose Lighting, | ID: 21610803530
Why do we use different resistors like 10k and 2.7k in a circuit? How do I know which resistor should I use? - Quora
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