Four-channel programmable linear DC regulated power supply, 245W output power, electrical isolation between channels, four channels continuously adjustable. 4.3-inch color display, real-time display voltage/current/power values and waveform, which makes the output status and trend clear at a glance. Low ripple noise: < 350 μVrms / 2 mVpp. Transient response time: ≤50μs. Over voltage/over current/over temperature/short circuit protection functions. The over voltage and over current parameters can be flexibly set to achieve effective load protection. Keyboard lock function to prevent mis-operation.