Solar controller MPPT module CN3791 for solar panel 12V

MPPT solar controller for single-cell Li-Pol batteries and solar panels with a working voltage of 12V.. Technical parameters:. - input voltage: 10–22V (designed for PV panel with system voltage 12V). - output voltage: 4.2V for charging Li-Pol or Li-Ion cells 3.7V. - charging current: max. 2A. - 1-2 PV modules can be connected. - 4 × JST connector, including cables. - switching frequency: 300 kHz. - indication of charging status and end of charging. - working temperature: -40 ° C to + 85 ° C. - size: 45 x 20 x 9.5 mm. The product is not a stand-alone unit, it requires professional installation.