Module Properties: non-isolated step-down module Input voltage : 4.5-30V Output voltage: 0.8-28V (adjustable) output must be lower 2V than input. Output Current: 0 – 12A (MAX) Input Current: 12A (MAX) (Please enhance heat dissipation if more than 10A) Output power: natural cooling 100W , enhance heat dissipation 200W (MAX) Conversion efficiency: 95% Operating Temperature: Industrial (-40°c to +85°c) (ambient temperature exceeds 40°c, lower power use, or to enhance heat dissipation) Short circuit protection: None (Please Install fuses and protection circuits at Input port.) Input Reverse Polarity Protection: None (Please Series diode at the input port.)