The Mean Well TS400-224B is a 400W switching power supply designed for LED lighting systems, industrial automation, and professional security applications. It is a universal input AC/DC LED driver designed to run in DC programs with a wide range of dimming methods. This power supply features a constant output current of up to 22.4A, high efficiency up to 88%, a wide operating temperature range of -20° to +60°C, low THD of less than 20%, active PFC, and high power factor of more than 0.95. It also has short circuit, overload, and over temperature protection.