SMAKN DP4016 DC-DC 6-40V to 0-38V 4A Constant Voltage Constant Current Step-Down Module

*IN +: input positive ;IN-: input negative. *OUT +: output positive; OUT-: output negative. *Input voltage range: 6-40.0V(40V to limit the maximum voltage, be sure to use too aggressive otherwise damaged). *Output voltage range: 0-38.0V. *Output power: maximum 200W. *Output Current: 4A . *(Output short-circuit may cause damage to the module, do not short-circuit). *Output voltage setting resolution: 0.1V. *Voltage measurement accuracy: (1% + 2 words). *Product Weight: 90g. *Dimensions: 60mm * 66mm * 45mm (including fan). *Protection: reverse polarity input protection MOS transistor integrated circuit, reverse is not damaged. Feedback: We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help. Our aim is to provide Top Level Customer Service, so we will try our best to solve any problem.Thank you very much!