1. SAFETY VOLTAGE PROTECTION: MPPT solar controller with voltage protection, including battery overvoltage and overcurrent protection, power failure protection, overcharge protection, deep discharge protection, reverse polarity protection, and overheating temperature protection. 2. MULTIFUNCTIONAL DESIGN: A multifunctional LCD with backlight and clock display, featuring 7 working modes: charging mode, light control mode, light, delay control mode, universal control mode, manual control mode, and timing control mode. 3. MPPT TECHNOLOGY: 100A MPPT solar controller with advanced Maximum Power Point Tracking (MPPT) algorithm, automatically identifying 12V, 24V, 36V, and 48V; two USB 5V charging ports can quickly track the maximum power point of the PV system in any environment, with tracking efficiency no less than 99.5%. Significantly improves the energy utilization efficiency of solar systems. 4. USERFRIENDLY DESIGN: LCD displays dynamically show operating data and device working status. Displays controller parameters (working mode, battery voltage, photovoltaic charging current, battery discharge current, product operating temperature, delay time).