V12S-12O-A is a type of Onpow DIN rail mount power supply. It has a 12Vdc 12 Amp output, built-in power factor correction and Isolation Class II protection. It has an AC input voltage of 85 to 264Vac and a standby power consumption of just 0.3 Watts. It is designed with a built-in overvoltage, overcurrent, and over temperature protection and is CE and RoHS certified. It also comes with a 2 year warranty and a snap-in 1/2 inch terminal block that securely connects the input/output cables.