The Mean Well GSM120B20-R7B is a single-output enclosed switching power supply with an output of 120 Watts. It has an output voltage of 20V and an output current of 6A. It has an input voltage of 85 to 264VAC, a frequency range of 47 to 63Hz, and a full protection system including short circuit, overload and over voltage protection. This power supply has a no-load power consumption of less than 0.75W, high efficiency up to 86%, a built-in active PFC function, and a wide operating temperature range of -30 to +70?. This power supply is AC input ripple filtering, conducted EMI and class B, surge immunity level 3, light weight and low output noise, RoHS compliant, and it is certified to UL/EN/IEC standards.