Manufacturer Astron Model # VS-12M-AP Product Description 12 Amp Variable Amp/Voltage Power Supply with Anderson Power Pole Connectors Input Voltage (VAC) 115 Volts AC Output Voltage (VDC) 2 to 15 Volts DC (Selectable) Amperage (Cont.) 9 Amperage (Intermittent) 12 Description Solid State electronically regulated. Feature fold-back current limiting to protect the power supply from excessive current or shorted output. Chassis mounted fuse. Less than 5 mv ripple peak to peak (full load and low line).Features include: Precision regulation adjustable from 2 to 15 Volts DC Adjustable Amperage current 1.5 to 12 amps Separate lighted voltage and current meters Short circuit and over-voltage protection Low peak to peak ripple of less than 5 mv High surge capacity Fold-back current limiting Grounded power cord External fuse access Ripple Voltage 5 mV Fold-Back Protection Yes Crowbar Protection Yes Dimensions (Width x Height x Depth) inches 8 x 4.5 x 9 Product Narrative Astron linear power supplies are heavy duty and solid state electronically regulated. Warranty 1 yr