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LED Resistor Calculator

Typical LED current: 5–30 mA (20 mA is common).
LED Resistor Calculator
Formula
\( R = \frac{V_s - V_f}{I_f} \)

Where:
\(V_s\) = Supply Voltage
\(V_f\) = Forward Voltage per LED
\(I_f\) = Forward Current (in Amps)

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