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Rather small but cute! Advanced DC PS. The 2 knobs controlling V and I have a press switch. They can be rotated continuously in either direction. The switch controls each of the 4 digits. The V switch also controls the system settings. Three memory buttons are provided (long press to store and short press to recall). The PCB, switches and wiring are excellent. A few tiny spots of solder were stuck on the bottom plate. The heat sink is grossly inadequate. The thermostatically controlled fan intermittently turns on even for 10W loads. I didn't test it for max rating continuously. The display is correct, but there are no presets on the PCB for calibration. It automatically switches between CC and CV. Make sure the settings are correct before switching the output on. The supplied output cable may be ok for currents less than 5A. A better cable, clamps and banana plugs would be required for higher currents.
The products arrived in good condition and without damage in a short time. I ordered two, one is type 3210 and the other is type 6205. They have load capacities of 32V 10A and 62V 5A respectively. The short-circuit protection is adjustable, even with an open output. The adjustment of the voltage and current limit can occur at any character, making the adjustment options very fine, fast, and accurate. Under lower loads, they operate quietly, while an intermittently operating fan takes care of cooling as the load increases. Although the fan is not noisy, I would have preferred it to operate continuously with speed control, so it could be even quieter. The output terminals accept banana plugs and bare wires. What I missed is a hole suitable for connecting thin wires on the output terminals. All in all, I received a very good, stable power supply. It is a pleasure to use. I can recommend it to others with good conscience.