Unique Bargains 2pcs 20A PWM Solar Charge Controller 12V/24V Auto Solar Battery Panel Controller Auto Parameter Charger Regulator with LCD Display Dual USB Ports

Function - This solar charge controller uses PWM technology to keep solar panels at maximum power output, improving energy efficiency.

Feature - The built-in maximum power tracking program significantly enhances the energy utilization efficiency of the photovoltaic system.

Display - The LCD display shows real-time status and data, allowing easy mode switching and parameter configuration; This controller provides reliable protection against over-voltage, short circuit, overload, over-charge, and over-discharge.

Usage - This 12V/24V auto-adapting controller should be connected to the battery first, then to the solar panel.

Note - For first-time use, ensure sufficient battery voltage for correct battery type recognition, and always distinguish positive and negative poles when connecting.