Feature: 1. Output Switch Control: Unlike traditional power supplies, this DC regulated bench power supply allows for one click presetting of output voltage and current. Users can easily set their desired parameters and initiate output with a single key press, enhancing safety and reliability. Traditional power supplies often require short circuiting to adjust current limits, which can compromise safety. 2. Good Performance: This digital power supply is built for quality, stability, and cost effectiveness. Featuring a 4 digit LED display for voltage and current readings, it is equipped with several safety guards including overvoltage, overcurrent, overheating, and overload guards, ensuring a secure operating environment. The integrated smart temperature control fan and excellent heat dissipation design enhance its reliability further. 3. Accurate Encoder Knob: This bench power supply utilizes an advanced accuracy encoder for adjustments, setting it apart from standard DC power supplies. Users can press the knob to switch to their designated setting position, and turn it to input the exact numerical values. This straightforward interface allows for direct value input rather than guesswork adjustments. Additionally, a long press of the knob can lock the keypad, preventing accidental changes. 4. Versatile Applications: Featuring a front facing 5V 2A USB charging interface, this programmable DC power supply can easily charge various devices. It is particularly suitable for applications in laboratories, electronic repair projects, communicating equipment maintenance, production lines, research, and educational setups, making it a versatile tool for both professionals and enthusiasts alike. 5. Excellent Aluminum Alloy Material: This switching regulated DC bench power supply is made of excellent aluminum alloy material for the shell, which is sturdy and rugged, not easy to be damaged, and has a long service life. Specification: Item Type: DC Power Supply Material: Aluminum Alloy Model: ET5410A+ Channel: Single Rated Input: Power: 400W Input Voltage: 0-150V Input Current: 0-40A Constant Voltage Mode: Range: 0.1-19.999V, 0.1-150V Resolution: 1mV, 10mV Accuracy: ±(0.05%+0.02%FS) Constant Current Mode: Range: 0-3A, 0-40A Resolution: 1mA, 10mA Accuracy: ±(0.05%+0.05%FS) Constant Resistor Mode: Range: 0.05Ω-1kΩ, 1kΩ-4.5KΩ Resolution: 10mΩ, 100mΩ Accuracy: ±(0.1%+0.5%FS) Constant Power Mode: Range: 0-400W Resolution: 10mW Accuracy: ±(0.1%+0.5%FS) Dynamic Testing Functions: Mode: CC, CV T1, T2: 50ms-60s Battery Testing Functions: Discharge Mode: CC, CR Maximum Discharge Capacity: 9999Ah Resolution: 1mA，,1mA，10mΩ，100mΩ Testing Range: Voltage Readback Value: Range: 0-19.999V, 0-150.00V Resolution: 1mV, 10mV Accuracy: ±(0.05%+0.1%FS) Current Readback Value: Range: 0-3.000A, 0-40.00A Resolution: 1mA, 10mA Accuracy: ±(0.05%+0.1%FS) Power Readback Value: Range: 400W Resolution: 10mW Accuracy: ±(0.1%+0.1%FS) Guard Range: Over Voltage Guard: >21V or >155V Over Current Guard: >3.1A or 42A Over Power Guard: 410W Over Temperature Guard: 85°C. Package List: 1 x Programmable DC Power Supply 1 x Plug 2 x Fuses 1 x Manual