Vetco Electronics LED Calculator

Enter your LED specifications to find the correct current-limiting resistor

LED Specifications

Input Voltage

VDC

LED Forward Voltage

VDC

LED Operating Current

Number of LEDs

pcs

⎯ Series Wiring

Ω W

Recommended resistor value & wattage

Color Code

Store Location 📍

⎯⎯ Parallel Wiring

QTY × Ω W

Resistor required — one per LED branch

Color Code

Store Location 📍

Min. Supply Current mA

Calculated Resistance Ohms

Actual LED Current mA

Power — LED mW

Power — Resistor mW

Total LED Voltage (Series) Volts

Min. Supply Current mA

Actual Resistor Wattage mW

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