The OKY3504-1 is a 44-60 V DC/ AC switch power supply from the OKYSTAR series. This single-phase, switched-mode PSU features a reliable full-range active-PFC (Power Factor Correction) technology and a wide-range input voltage of 90-264 V AC. It has an output power of 350-1000 W, a 3-level full-range wattage adjustment of 350-600-1000 W, and a very high efficiency of up to 92%. This power supply also features a wide-range of protections, such as overload protection (OPP), over-voltage protection (OVP), and short-circuit protection (SCP). Additionally, it has a 100% full-load burn-in test and a built-in fan to ensure reliable and safe operation. The OKY3504-1 is UL, CE, TUV, and FCC approved, making it suitable for a variety of different applications.