Feature: 1. OCP Short Circuit Alarm Switch: This DC regulated power supply is equipped with OCP short circuit alarm switch, when this function is activated, the power supply will stop output when short circuit occurs in the load equipment and there will be a beep sound for prompting, and the power supply will resume output automatically after the short circuit is lifted from the outside. 2. High Accuracy Display: This DC voltage regulator has LED 4 digit display to show the voltage value, current value and power accurately. 3. Low Ripple And Low Noise: This DC regulated power supply has small voltage fluctuation, low noise, stable output and low interference effectively help the work demand. 4. Temperature Controlled Fan: This DC regulated power supply comes with a temperature controlled fan, which is automatically turned on to dissipate heat when the internal temperature of the power supply reaches a certain level. 5. Compact And Portable: This DC voltage stabilized power supply is exquisite and small in one hand, which saves more space on the workbench. Specification: Item Type: DC Power Supply Material: Aluminum Alloy Output Voltage: 0-30V Output Current: 0-10A Output Power: 300W Auxiliary Output: USB and Type C Operating Temperature: 0℃-40℃, Relative Humidity: <80%RH Storage Temperature: -10℃-70℃, Relative Humidity: <70%RH C.V Constant Voltage State: Voltage Stability ≤0.1%+3mV Load Stability: ≤0.1%+3mV Ripple Noise: ≤20mVrms (RMS) C.C Constant Current State: Current Stability ≤0.1%+3mA Load Stability: ≤0.2%+3mA Ripple Noise: ≤5mArms (RMS) Protection Mode: Current Limit Protection, Short Circuit Alarm Stop Output, Self Recovery Display: 4 Digital Tube, 3 Window Display Display Accuracy: 0.5%+3 Character Fuse Specification: 3A. Package List: 1 x DC Power Supply1 x Connection Cable1 x Plug1 x Manual