LTC1871 100W 3-35V 12V to 3.5-35V Boost Step-up Module LED Voltmeter+Heat Sink

Product description Type : Voltage Regulator Brand new with high quality Color: as picture show Size:67.5mmx41.5mmx14mm/2.66"x1.63"x0.55"(inch) (approx). Performance parameters: 1.Input Voltage:3-35V DC (Note: When input voltage is less than 4V, onboard voltmeter will not work). 2.Input Current:9A (max). 3.Output Voltage:3.5-35V DC (this board is boosting board, output voltage>=Input voltage). 4.Output Current:6A (max). 5.Output Power: 65W (when the input and output voltage greater than 20V up to 100W). 6.Conversion Efficiency: 96% (the highest). 7.Output Ripple:40mV(TYP). 8.Onboard Voltmeter Range:4-40V . 9.Error:+/-0.1V. The module has high power output and efficiency (up to 96%). The output can be up to 65W (and can further reach 100W when enhance heat-transfer). Onboard we have a voltmeter to show clearly the input / output voltage (we can select to show input/output voltage by pressing on the button onboard). When the "IN" LED lights on, the voltmeter displays input voltage; When the "OUT" LED lights on, the voltmeter displays output voltage. We can also turn off the voltmeter LED by removing the jumper cap at "P3 (please refer to below image)". We can easily adjust voltage by the potentiometer onboard and the voltmeter onboard. We wont even need a multi-meter when adjusting. Very convenient!!! Note 1: No reverse connection protection, please pay attention to see the positive and negative input terminal. Note 2:The power module useage requires basic electronic circuit, improper use can damage IN+: Input Positive IN-