Feature: 1. The 2.8‑inch TFT LCD screen with backlight function allows continuous observation in dark conditions. 2. Load has upper‑level software, can be connected to computer through USB communication to realize operation on computer. 3. With secondary overheating guard function, realizing double overheating guard of software and hardware. 4. The intuitive interface display system makes the operation process simple and convenient. 5. With over‑voltage, over‑current and over‑power guard functions, over‑voltage and over‑current parameters can be flexibly set to effectively protect load. 6. Provide professional battery test and CC, CV, CR, CP and above CC+CV, CR+CV several basic measurement modes. 7. With dynamic testing mode, it can be used to test dynamic power output performance. 8. Widely used in production and testing of battery chargers, switching power supplies, linear power supplies, and testing research and development in other industries and scientific research institutions. Specification: Item Type: DC Electronic Load Material: Aluminium Alloy Size: Approx. 90x190x286mm / 3.5x7.5x11.3in Model ET5410A+ Number of Channels Single Channel 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 Resistance 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 Test Function Mode CC, CV T1&T2 50ms~60s Battery Test Function Discharge Mode CC, CR Maximum discharge capacity 9999Ah Resolution 1mA, 1mA, 10mΩ, 100mΩ Measuring 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) Protected Range Overvoltage Guard More Than 21V or More Than 155V over voltage guard Overcurrent Guard More Than 3.1 or More Than 42A over current guard Over Power Guard 400W Over Temperature Guard 85°C . Package List: 1 x DC Electronic Load1 x Power Plug2 x Protective Tube1 x Manual Note: 1.Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. When plugging in, you need to confirm whether the voltage is in line with the power, can not switch on to avoid burnout.