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LED Resistor Calculator

Source voltage =
LED Forward voltage =
LED Current =
Resistor =

Help

Computes the value of an appropriate resistor for an LED with given voltages and current.

Rows

- Source voltage in volts
- Forward LED voltage in volts
- LED Current in milliamps
- Resistor in ohms

Keywords

Source voltage
LED Forward voltage
LED Current
Resistor
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