What is LED driver?
Apr 28, 2022
LED drive is to convert 220V AC into DC voltage available for LED (usually 3-110V), divided into constant current drive and constant voltage drive.
Constant voltage drive means that the output voltage is constant and the current is variable. For example, the switching power supply of light bars has the advantage that multiple light strings can be connected in parallel at will and the higher the power, the lower the cost.
Constant current drive is a constant output current and variable voltage, such as LED downlights, spotlights, panel lights and the drive inside the light bar. Its advantage is that it can adapt to the working current environment required by the LED lamp bead.
According to the use environment, it can be divided into indoor, outdoor and bare board. At present, the most commonly used output current of indoor LED drivers is basically about 300mA. If the output accuracy of the driver is sufficient, the service life of the lamp beads will be guaranteed.
