What is an LED driver, DC-DC LED drivers, solid-state lighting solution

 100 - 277Vac, 320.16W, 13340mA, 12-24V, [Potentiome...], IP65 LED Driver

https://www.futureelectronics.com/p/semiconductors--Led-lighting-components--led-driver-modules-rev--constant-current-acdc-led-drivers/hlg-320h-24a-mean-well-1161990