Solar Charge Controller Set (4 Units): 2 MPPT + 2 PWM

I have 4 functional solar charge controllers. 1 – Solar charge controller, MPPT technology, rated at 20 A, 40 A, or 60 A maximum; features a multi-state display still protected by its original protective film. Also supports Bluetooth or Wi-Fi communication with tablets or smartphones for monitoring photovoltaic panel status, battery status, and battery discharge when connected loads are drawing current. Includes temperature sensor. As-new condition, still in original box with invoice and warranty. 2 – Another MPPT controller, rated at 30 A maximum, with display. 3 – PWM controller, rated at 10 A maximum, featuring independent dual-battery charging capability—allowing simultaneous charging of two batteries of different technologies. Numeric LED display. 4 – PWM controller, rated at 100 A maximum, highly powerful, with multifunction LCD display. No interest in exchanges or trade-ins. Units may be sold separately. No responses will be provided regarding pricing offers or questions about details already described. Transaction in person in São João da Madeira. Travel distance charged per kilometer. Shipping possible upon advance payment.