Build to Last: This product is made of high-quality ABS, with a painting process, which is scratch-, tear-, rust-, and not easy to deform, keeping the product sturdy and practical for long-term use. High Safety: Short-circuit protection, over-temperature protection, overload protection, and overvoltage protection functions and equipped fuse make the product highly safe. In addition, the product is equipped with an anti-reverse connection to better protect user devices. High Accuracy:It supports 0-30V voltage output and 0-5A current output. The voltage display precision is 1% + 1 digits, and the current display precision is 1% + 2 digits, providing more accurate voltage and current readings. Powerful Function: It can automatically switch between . and C.V. modes, and can be used as a constant voltage (C.V.) power supply and constant current (.) power supply even when the load changes, ensuring stable output voltage or current. Energy Saving: Under the condition of ensuring voltage stability, the energy efficiency ratio of the product is as high as 85%, which can effectively improve energy utilization.Good Heat Dissipation: The built-in cooling fan automatically turn on when the internal temperature of the power supply reaches a certain level, ensuring stable operation and prolonging the service life of the product. Process: Painting Power Source: Corded Electric Input Voltage: AC 220V / 50Hz Output Voltage: 0-30V Output Current: 0-5A Voltage Resolution: 0.1V Current Resolution: 0.01A Ripple Voltage: Vpp 1% Power Effect: CV1%+10mV Effect of Load: CV1%+10mV Ripple Noise: 1 MV Voltage Display Precision: 1% + 1digits Current Display Precision: 1% + 2digits Operating Environment: -10-45/14-113 Rh90% Storage Environment: -20-60/-4-140 Rh80% Digital Display: 3-digit LED Efficiency: 85% Noise: 60dB Power Cord Length: 1.2m/3.94ft Output Line Length: 1m/3.28 ft The product appearance and printed words depending on the batch, but this does not affect use Voltage: AC100-240V Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Colour:As Shown Material:ABS Package Contents: 1 x 30v power supply Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.