The HLG-100H-54 is a type of switching power supply module produced by Mean Well. It is a high-efficiency LED driver, capable of providing up to 100W of current and 95% efficiency. This driver is made for applications such as LED lighting, LED ceiling lights and LED outdoor lights, and features active power factor correction, over voltage, over current, and short circuit protection. This module is 108mm x 64mm x 36mm in size and includes an integral DC-DC PFC converter. Additionally, it supports various dimming options including PWM, 1-10V, and timer dimming.