Nevertheless, the term low voltage is generally used to distinguish it from line voltage technology. The term low voltage is the colloquial term for a extra-low voltage. This voltage is usually generated by a transformer from the 120V mains supply. Depending on the lamp or luminaire, both a DC voltage (DC) or an AC voltage (AC) may be required.
Low voltage LED lights are mostly operated with a voltage of 12V. A high voltage is usually referred to as an alternating voltage of 1,000 volts or more. The term line voltage has nothing to do with high voltage. The term line voltage is used for alternating voltages in the range of 30 to 1,000 volts. LED lights in the line voltage version can be operated directly with the mains voltage of 120 volts, which is usual in the US. Low voltage LEDs are mostly operated with a voltage of 12V. Line-voltage LEDs are operated with 120V mains voltage. This is the indication of the operating voltage for the respective LED light. Sometimes 120V and 12V are mentioned instead of line voltage and low voltage. Meanwhile there are now many light sources and luminaires in a high-voltage and low-voltage version available. However, LED lights have many advantages compared to old incandescent bulbs. With the introduction of LED lighting both variants are still available. Even the old incandescent bulbs were available in both versions. Voltage drop charts for Diode LED LED tape lights can be found on their product pages.Line-voltage and low-voltage technology exists much longer than LED technology.
#Voltage lights driver#
If in our example the driver is installed 20 feet from the Diode LED Tape light the second chart shows that the correct wire gauge is 16 AWG. The degree of voltage drop is determined by four main factors: voltage input (12V or 24V), wire run length, wire gauge, and total fixture load used by the lighting (Watts & amps).Īn electrician or installer can use the chart below to determine the proper wire gauge for the installation. Identify proper wire gauge to run between the driver and LED luminaire.ĭiode LED products will only work as specified provided there is 3% or less drop in voltage between the Driver and the LED lights. The maximum run of 40 feet will require at least 83.6 Watts to properly power the LED tape light array. If you stay within the tested maximum run length, simply calculate the wattage per foot or per fixture to determine the proper driver capacity. Diode LED tests the voltage drop within products and designates maximum runs. The specifications state that the Diode LED Tape Light uses 2.09 Watts per foot. Let’s make that work using the simple steps below. The specifications show that it can run up to 40 feet. This may be best demonstrated with an example using Diode LED Tape Light. How can customers avoid voltage drop effects with Diode LED solutions? The result is a perceivable shift in color or brightness difference in the LEDs on one end compared to the other. This is often noticed in longer runs of LED tape light. Less than the minimum current can cause an LED to flicker, operate less brightly, or shift in the color. The importance of voltage drop for LED based lighting is that an LED requires a minimum amount of current to properly light. How can voltage drop affect an LED lighting system? Wires, electrical components, and virtually anything carrying current will always have inherent resistance, or impedance, to current flow. Voltage drop is defined as the amount of voltage loss that occurs through all or part of a circuit due to impedance.
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