LED Series Resistor Calculator
Supply Voltage
Forward Voltage
V
Forward Current
Outputs :-
Resistor value
Ω
Power
w
Every light emitting diode (LED) has a current that it can safely handle. Going beyond that maximum current, even briefly, will damage the LED. Thus, limiting the current through the LED with the use of a series resistor is a common and simple practice.This method is not recommended for high current LEDs, which need a more reliable switching current regulator.
Formula :-
R
=
Vs - Vf
If
