Feature: 1. ENCODER ADJUSTMENT: Press the knob to move the adjustment position, adjust the thickness value, and preset the voltage and current. 2. HIGH ACCURACY DISPLAY: DC power supply variable has a LED four digit display of voltage, current, and power, with accurate digital display. 3. LOW RIPPLE AND LOW NOISE: Low voltage fluctuation, low noise, stable output, and low interference effectively contribute to work requirements. 4. FULL LOAD STABILITY: DC power supply can be used at full load without burning the machine, providing convenience for your work. 5. TEMPERATURE CONTROLLED FAN: When the internal temperature of the power supply reaches a certain level, the fan automatically turns on heat dissipation. 6. SMALL AND PORTABLE: 190mm x 70mm x 130mm, exquisite and compact, easy to grasp, small in size and light in weight, saving more space for the workbench. Specification: Item Type: DC Adjustable Regulated Power Supply Mode: ETP3005A Material: Aluminum Alloy Output Voltage: 0-30V Output Current: 0-5A Output Power: 150W Stable Voltage State: Voltage Stability: Less than or equal to 0.1% ± 3mV Load Stability: Less than or equal to 0.1% ± 3mA Steady Current State: Current Stability: Less than or equal to 0.1% ± 3mV Load Stability: Less than or equal to 0.1% ± 3mA Display Accuracy: Voltage: 0.5% ± 3 words Current: 0.5% ± 3 words Ripple and Noise: VPP less than or equal to 1% Display Resolution: Voltage: Up to 10mV Current: Up to 1mA Power: Up to 10mW Display Method: 4 digit red LED digital tube, 0.4 inches Power Input: AC220V ± 10%/50Hz or AC110V ± 10%/60Hz Operating Environment: Indoor use, altitude less than or equal to Approx. 2000m / 6561.68ft, temperature 5 to 40 ℃, humidity 10 to 85% RH Storage Environment: Temperature: -20 to 80 ℃, humidity less than or equal to 80% RH Size: Approx. 190 x 70 x 130mm / 7.48 x 2.76 x 5.12in . Package List: 1 x DC Power Supply 1 x Plug 1 x Crocodile Clip 1 x Manual