1. Apparent power: In an AC circuit with resistance and inductance, the product of the effective value of the voltage and the effective value of the current is called the apparent power. Apparent power = active power + reactive power.

That is to say, VA measured by ammeters, voltmeters and ohmmeters that are often used in practice are all parameters in the apparent power.

  2. Active power: Electric energy is used to do work and is consumed, and they are converted into heat, light, mechanical or chemical energy, etc., called active power.

Experts of 150W LED dimming power supply believe that: it can also be called: average power. The instantaneous power of alternating current is not a constant value. The average value of power in a period is called active power, which refers to the power consumed by the resistance part of the circuit, represented by the letter P, in watts.

3. Reactive power: In a circuit with inductance, the inductance converts the energy of the power supply into the energy of the magnetic field or electric field during half a period of time and stores it, and returns the stored magnetic field energy during the other half of the period power supply.

It is only the exchange of energy with the Constant voltage led power supply, and it does not actually consume energy. We call the amplitude value of the rate of power exchange energy as no power, which is represented by the letter Q and the unit is depletion.

For more about 0-10v dimmable led driver, Pls don’t hesitate to contact with us at info@swinpower.com.