Manufacturer Astron Model # LS-35A Product Description 35 Amp Power Supply Input Voltage (VAC) 115 Volts AC Output Voltage (VDC) 28 Volts DC (Adjustable from 22.0-32.0 Volts DC) Amperage (Cont.) 27 Amperage (Intermittent) 35 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: Solid state electronically regulated Fold-back current limiting protects power supply from excessive current and continuous shorted output Crowbar over voltage protection on all models except RS-3L, RS-4L and RS-5L Maintain regulation and low ripple at low line input voltage Heavy duty heat sink Three conductor power cord All metered units feature backlit meters Ripple Voltage 5 mV Fold-Back Protection Yes Crowbar Protection No Dimensions (Width x Height x Depth) inches 13.75 x 6 x 12.25 Product Narrative Astron linear power supplies are heavy duty and solid state electronically regulated. Warranty 1 yr