The B&K Precision 1601 Regulated DC Power Supply supplies 0 to 50 Volts at 0 to 2 amps, with a meter range switching that switches from 50V full scale to 25V full scale for better control at low voltages. 

The BK Precision 1601 Regulated DC Power Supply offers extremely precise adjustable current control with over 4 full-scale ranges. 

B&K Precision 1601 Regulated DC Power Supply features:

• AC / DC power supply 
• Output Voltage: 0 to 50VDC 2 meter ranges: 0-25VDC and 0-50VDC 
• Output Current: 0 to 2A in 4 ranges: 0-50mA, 0-0.2A, 0-0.5A, 0-2A 
• Fully automatic shutdown, adjustable current limit