... 2A, 0~3A, 0~5A Variable DC Power Supply Specifications:1) Model (output voltage, output current, display)a) HY3002E (0~30V, ... HY5003E (0~50V, 0~3A, 2 LED)2) Input voltage: 104~127V AC (60Hz), 207~253V AC (50Hz ... 291 x 158 x 136mmBack Side of the Single output power supplyCord: Plug can chose frome UK, EU or ... you want.Inside box for the single output power supply,Finished goods are waiting to ship out.