.The PSPA-1000-48 with Switching Power Supplies 1008W 48V 21A W/PFC and Parallel manufactured by Mean Well is a powerful and reliable switch mode power supply module. It measures 350mm x 85mm x 420mm, and it has a current input of 115/230VAC, and a frequency of 47-63Hz. It also provides an output power of 1000W with a voltage of 48V DC at up to 21A. The high power density and efficient design make it suitable for various applications, such as industrial and telecom equipment, and LED lighting. It features active power factor correction, overload and short-circuit protection, parallel function, low noise, and high efficiency up to 94.5%. It also has a plastic case, built-in fan, and screw terminals for easy installation and maintenance.