LED lighting is a lighting fixture made of light-emitting diodes as the light source. The LED driver power supply is a power supply device used to drive the normal light emission of the LED lighting lamp, and its core is the LED driver chip. Also known as the LED driver LC. Most of the early LED drive power supplies used constant voltage mode, which had many drawbacks.

At present, most LED drive power supplies adopt constant current output type, and some adopt constant voltage/constant current (CV/CC) output type. Its characteristic is that it works in the constant voltage area when the load current is small, and it works in constant voltage when the load current is large. The current zone can play the role of overload protection and short-circuit protection.

LED drive power generally refers to an AC/DC converter, the core part of which is an LED driver; an LED driver is a DC/DC converter, which can be used alone or constitute an LED drive power supply. This is the main difference between the two. The similarities between the two are made up of LED driver chips.