DC Bench Power Supply Variable, Pevono PS305H 0-30V/0-5A LCD Display Accurate Voltage&Current Adjustable Switching Regulated Power Supply with US Power Cord For Lab Equipment,Research and Repair, DIY DC Bench Power Supply Regulated Adjustable: 4 digital back-lit LCD display from 0-30 volts and 0-5 amp outputs, constant voltage and constant current indicator light from 0.01 V and 0.001A resolution over the full range. Safety Protections: Featuring a high accuracy, reliability and perfect limit current protection, thermal protection, voltage overload protection, short-circuit protection. A grounding port designed onto the device for much more stable and secure protections. Four Operational Modes: clearly indication panel controls of two current tuning knobs and two voltage tuning knobs to adjust coarse to fine conditions, and the cooling fan automatic activation by built-in thermo-sensor, low noise and long working lifetime of product. Light Weight&Heavy Duty: 1.87 pounds per unit, but high precision power supply designed for testing and repairing workshops, factory maintenance, labs and schools, it was a perfect electronics DIY tools.It must to parallel connect a 10U 50V capacitor and a 104 ceramic capacitor with probe when we tested the power supply with an oscilloscope. Manufacturer's Warranty: Our DC Power Supplies are CE certified, UL-listed power cord, 60 days money back with 24 months product guarantee, please purchase from us with no worries.