Features: 1. All adopt screwdriver free potentiometers for direct manual adjustment 2. The chip enhances heat dissipation, reliability, stability and high 3. Reserved 5V fan interface for customers 4. Real time display of MPPT regulating voltage at a glance Specifications: Input voltage range: DC7-80V Output voltage range: DC1.4-79V Voltage display range: 40-80.00V (accuracy 0.1V) Output current regulation range: 0-20A Current display range: 0.00A-20.00A (accuracy 0.03A or so) Adjustment knob: MPPT voltage regulation, output voltage regulation, output current limiting regulation MPPT function: Yes Backflow prevention: the battery will not burn when it is poured back. When the is insufficient and there is no charging current, there will be 0.5-40mA backflow current. It is recommended to the diode when charging. Constant current (current limiting): Yes Over protection: 300W, over will turn off the output and display OPP Size: 108 x 64 x 48mm Applications: solar charging, lithium battery charging, LED constant current drive, regulated supply Material: PCB+Metal colour: black Package Contents: 1 x Automatic voltage lifting module(with Display) Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.