Product details:

Dual action voltage and current control push knob provides fine and coarse tuning These DC power supplies are perfect for all your laboratory power applications. Units include two user-defined voltage and current presets and one 13.8 V / 20 A factory preset providing automatic constant current and constant voltage crossover capabilities. Additional features include over voltage, over-temperature, short circuit protection, thermostatic control fan, high RFI immunity, and remote control for output voltage/current and on/off functions. The low profile and small footprint design saves valuable bench space.