Review

I have Korad KA3005P and Velleman LABPS300SN.

Korad is very handy in terms of presetting 4 user voltage entries. So I switch between 5V, 3V3, 12V, 24V. The 5th preset is also a direct access to 24V. Only downside is the noise. But I added a bi-metal thermostat so, it doesn't spin all the time so no noise.

Velleman is trustworthy brand, noise is lesser and cheaper. It works great.