Yescom 110V AC 30V 10A DC Power Supply Precision Variable Digital Adjustable w Clip Cable Durable steel case Constant voltage and constant current operation mode (C.C and C.V. automatic conversion) Multiple protections: over voltage (OVP), open circuit (OCP),over temperature (OTP) Safe circuit design, high quality key components adopted, the power supply can be used in 24 hours with full load Intelligent temperature control fan adjusts the speed according to the load situation, effectively reduce noise and prolong the life of fan