UNIROI DC Available Power Supply, 0-30V/0-10A Adjustable Power Supply with 3-Digit LED Display, Alligator Clip Leads (Banana Plug and Spade Lugs), Input Power Cord UC3010 Adjustable DC Power Supply: Variable voltage output: 0-30 volts; Variable current output: 0-10 amp; 3-digit LED Display accuracy: 0.1V and 0.01A. Constant-Current & Constant-Voltage Operation Mode: The two operation modes will switch over automatically as the load changes. There are indicators of the two modes on the Display. Multiple Safety Protections: Features current-limiting protection, thermal protection, voltage overload protection, short-circuit protection. Intelligent Temperature Control: Cooling fan with built-in thermal sensor can automatically cool the power supply, low noise, effectively extend its service life. Gift: Comes with 2pcs Alligator Clip Leads (one is with banana plug, one is with spade lugs), 1pc Input Power Cord. (Please switch to 115V at the back of power supply before using, or you cannot get 30V output)