The RPS-400-15-SF is a 400W, 15V, 27A regulated switching power supply manufactured by the Mean Well Corporation. This product is designed for indoor use and features active power factor correction for improved efficiency. The power supply comes equipped with a built-in active EMI filter, wide-range AC input, and short circuit, over current, overload, and over voltage protection. It's certified to international safety standards including UL, cUR, TUV, and CB. This power supply has an IP50 environmental rating and an efficiency rating of up to 94.5%.