The Mean Well HSP-300-4.2 is a single output, 300W switching power supply with active PFC. This part offers universal AC input and rated at 4.2A, 24V output. It has built-in protections for over voltage, over temperature and short circuit. With a no-load power draw of less than 0.5W and a high efficiency of up to 89.5%, this is an energy-saving and reliable option for a wide range of applications. It also has UL, cUL, TUV, and CE safety approvals. This part is designed for use in indoor applications only.