Extech 382260 Switching Mode 80 Watt DC Power Supply 3-in-1 Lightweight DC Power Supply with 3 selectable ranges Performs like 3 power supplies in one 3 selectable ranges: 0 to 16 Volts/0 to 5 Amps; 0 to 27 Volts/0 to 3 Amps; 0 to 36 Volts/0 to 2.2 Amps 4-Digit LED displays Front/rear output terminals