SK40 Upgraded DC Buck-Boost Converter Constant Voltage Charging Module CNC DC Regulated Power Supply Input voltage: 6-36.00V; Output voltage: 0.5-36.00VOutput current: SK40: 0-4.5A; Output voltage accuracy: 0.3%+3 words (can be calibrated)Output power: SK40: 40W; Output current accuracy: 0.5%+3 words (can be calibrated)Voltage resolution: 0.01V; Current resolution: 0.001AData group storage: 11 groups of silicone rubber keyboards: 5Product name: CNC DC buck-boost power supplyProduct model: ZK-SK40Screen size: Upgraded 1.8-inch large screen, 36x29mm visual rangeBuzzer: YesConversion efficiency: about 88%Soft start: YesProduct weight: SK40: net weight 103gprotection mechanism:Input anti-reverse connection: yesOutput backflow prevention: yesInput undervoltage protection (LUP): 5.5-35V adjustable, factory default value 5.5VOutput overvoltage protection (OUP): 0.5-37V adjustable, factory default value 37VOutput overcurrent protection (OCP): SK40: 0.001-4.6A adjustable, factory default value 4.6AOutput over-power protection (OPP): SK40: 0.01-41W adjustable, factory default value 41WOver-temperature protection (OTP): 30-99 adjustable, factory default value 90Overtime protection (OHP): 1-99 hours and 59 minutes, factory default is offOver capacity protection (OAH): 0.001-9999Ah, factory default is offOverpower protection (OPH): 0.001-4000KWh, factory default is offColour:BlackMaterial:absSize:SK40:83x48x29.4mm. (Height does not include rotary encoder)Package Contents:1 * buck boost converterOnly 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.