Ballasts

An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps to limit the current through the tube, which would otherwise rise to a destructive level due to the negative differential resistance of the tube’s voltage-current characteristic. Ballasts vary greatly in complexity. They may be as simple as a resistor, inductor, or capacitor (or a combination of these) wired in series with the lamp or as complex as the electronic ballasts used in compact fluorescent lamps (CFLs) and high-intensity discharge lamps (HID lamps).

Drivers

Using an LED Driver is vital in preventing damage to the LED as the forward voltage (Vf) of a high-power LED changes with temperature. Forward Voltage is better explained as the amount of volts the light emitting diode requires to conduct electricity & illuminate or “light up”. As temperature increases, the forward voltage of the LED decreases. This causes the LED to draw more current. The LED will continue to get hotter and draw more current until the LED burns itself out, which is known as “Thermal Runaway”. The LED driver is a self-contained power supply whose outputs are directly matched to the electrical characteristics of the LED(s). This helps avoid thermal runaway as the constant current LED driver will compensate for the changes in the forward voltage while delivering a constant current to the LED.

Regardless of your Ballast or Driver requirements, our lighting experts are committed in providing the best product fit, exceptional product quality and at the best pricing. Please call us: (702) 384-6407

 

Ballasts & LED Drivers

Metal Halide Ballasts

Pulse-Start Metal Halide Ballasts

Sodium Ballasts

Emergency Ballasts

LED Drivers

Compact Fluorescent Ballasts

LED Power Supplies

Electronic Metal Halide Ballasts

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