Led Lighting Voltage Drop Calculator

To better prepare for your next linear lighting system installation use our voltage drop calculator to customize the different aspects of the system such as wire gauge and run lengths between fixtures.

Led lighting voltage drop calculator. Determine the length of LED strip you will connect to a single power supply Step 2. See below for acceptable voltages for LED and typical incandescent landscape lighting systems. The calculation assumes uncoated copper or aluminum conductors operating at the temperature selected and is based on the acdc resistance or impedance from NEC 2011 Chapter 9 Tables 8 and 9 for stranded conductors operating on a DC or AC 60Hz system.

As you can see the resistor value increases as the supply voltage increases. 24 numbers 100 watt LED each 50 m poles space 50 m from pillar to 1st pole. Watts is calculated by multiplying volts by amps used in your LED system.

This measurement will also tell you if you have too much voltage drop. The usual operating range of common 3 mm and 5 mm LEDs is 10-30 milliamps. Voltage is the remaining voltage after voltage dropis subtracted out.

Amperes - Enter the maximum current in amps that will flow through the circuit. The voltage drop on a LED depends on the color it emits. Watts per Fixture at Rated Voltage Watts Amps Total Watts Amps at Rated Voltage Watts Amps Circuit Length to First Fixture.

24 numbers 100 watt LED each 50 m poles space 50 m from pillar to 1st pole. The current through the circuit is constant so ILED is also the current through the resistor. Single-phase voltages are usually 115V or 120V while three-phase voltages are typically 208V 230V or 480V.

Always start your calculations with 12-gauge wire. Low Voltage Lighting Volt Drop Calculator. Keep in mind the results do not include the voltage drop of the LED strip itself and only includes the voltage drop in the wires.