The PWM-120-12DA is a product made by the Mean Well company. The device is an AC/DC switching power supply with an output of 120W with 12V DC. It is a single output, isolated half-bridge PWM series with active PFC and PWM (Pulse Width Modulated) control design. The device is designed to provide a high efficiency and reliable power source for a variety of applications, such as industrial control, lighting, and display products. It features a wide input voltage range of 85~264VAC, low no-load power consumption, remote sensing, over-voltage/over-current protection, remote on/off, and offers low thermal resistance for high module efficiency. The device also has a built-in fan for cooling and is approved in accordance with safety standards of international certification agencies such as UL, CB, CE, and RoHS.