Led lights are used for actuators or ballast
The so-called drive and the ballast are the same for the product itself. The power on the LED lights, you can also call it a ballast.
The only thing that's different, the one that's used on the LED lights is the electronic switch constant current, And the sodium lamps are powered by inductance, not switch power.
The ballast on a traditional sodium lamp can also be called a power source or drive. The driver and the ballast are just a name, which is not necessary to distinguish carefully.
