Product model: -SK40C Input voltage: 6-36.00V Output voltage: 0.5-36.00V Output current: 0-4.5A; Output voltage accuracy: ±0.3% +3 words (can be calibrated) Output power: 40W; Output current accuracy: ±0.5% +3 words (can be calibrated) Voltage resolution: 0.01V Current resolution: 0.001A Data group storage: 11 groups Silicone buttons: 5 Screen size: 1.8-inch upgraded large screen, 36x29mm viewing range Buzzer: Yes Conversion efficiency: about 88% Soft : Yes protection mechanism: Input anti-reverse connection: Yes Output anti-reverse connection: Yes Input undervoltage protection (LUP): 5.5-35V adjustable, factory default value 5.5V Output overvoltage protection (OUP): 0.5-37V adjustable, factory default value 37V Output overcurrent protection (OCP): 0.001-4.6A adjustable, factory default value 4.6A Output over-power protection (OPP): 0.01-41W adjustable, factory default value 41W Over-temperature protection (OTP): 30-99℃ adjustable, factory default value 60℃ Overtime protection (OHP): 1 minute-99 hours and 59 minutes, factory default is off Over capacity protection (): 0.001-9999Ah, factory default is off Over energy protection (OPH): 0.001-4000KWh, factory default is off Colour:Black Material:plastic Package Contents: 1x CNC boost and buck module 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.