Fine Powerex Co. Ltd. is the leading Switch mode Power Supply manufacturer in the world, partnering with well-known companies such as Posco, Samsung electronics, Kepco, etc. FOS series of Fine Powerex provides reliable power supply for Signage & Architectural LED lighting applications. The sturdy design makes it suitable for both outdoor and indoor use. It has fanless design and cooling is mainly done through free air convection, making it highly efficient up to 89%. The transformers withstand 5G vibration test and meets 4kV surge immunity level. FOS series is well protected against short circuits, over current and over temperature.