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Series LEDs current limiting resistor calculator

Supply voltage: V
Voltage drop: V
LED current: mA
Number of LEDs: db

Calculated resistor: Ohm
Standard value: Ohm
Resistor Wattage: W

Parallel LEDs current limiting resistor calculator

Supply voltage: V
Voltage drop: V
Led current: mA
Number of LEDs: db

Calculated resistor: Ohm
Standard value: Ohm
Resistor Wattage: W

Lumen / candela convert


Flux: (lumen)
View angle: (°)
Intensity: (mcd)