1、[Encoder Adjustment] Equipped with encoder coarse and fine adjustment knob, press the knob to move the adjustment position, adjust values, and preset voltage and current. 2、[OCP Short Circuit Alarm] When the load device occurs a short circuit, the power supply will stop output and emit beep to prompt. 3、[High Precise Display] This digital DC power supply adopts LED 4 digit display, precisely displaying voltage, current, and power. 4、[Low Ripple and Noise] This variable power supply has low voltage fluctuation, low noise, stable output, low interference, effectively meeting work requirements. 5、[With Fan] When the internal of the power supply reaches a certain temperature, the built in fan will automatically turn on for heat dissipation. Item Type: DC Power Supply Variable Material: Aluminum Alloy Output Current: 0-5A Output Power: 300W Auxiliary Output: USB and Type C Working Temperature: 0℃ to 40℃, relative humidity: <80% RH Storage Temperature: -10℃ to 70℃, relative humidity: <70% RH Load Stability: ≤0.1%+3mV Ripple Noise: ≤20mVrms (effective value) C.C Constant Current State: Current Stability: ≤0.1%+3mA Load Stability: ≤0.2%+3mA Ripple Noise: ≤5mArms (effective value) Protection Method: Current limiting protection, short circuit alarm stop output, self recovery Display: Four digit digital tube, three window display Display Accuracy: 0.5%+3 characters Fuse Specification: 3A 1 x DC Power Supply Variable 1 x Connection Cable 1 x Plug 1 x User Manual