Optimize your solar power system with this advanced Dual USB Solar Charge Controller, designed for efficiency, safety, and ease of use. Featuring an industrial-grade main control chip, it delivers complete three-stage charging management and ultra-low heat generation for reliable and long-lasting performance. The large LCD display offers real-time monitoring of charging and discharging current, accumulative power generation, discharge power, and temperature for comprehensive system oversight. Key Features: · Industrial-Grade Main Control Chip: Ensures precise three-stage charging management with backflow resistance circuitry to protect your batteries and optimize charging efficiency. · Large LCD Display: Provides clear visual feedback including charging/discharging current, cumulative power generation, discharge power queries, and temperature display for intuitive monitoring. · Light Control & Delay Control Functions: Adjustable charging and discharging parameters, with power-off memory function to maintain settings after power interruptions. · Dual USB Outputs: Two USB ports deliver a maximum 5V/2.5A output, compatible with charging smartphones and other USB devices efficiently and safely. · Comprehensive Self-Recovery Protection: Built-in safeguards against overcurrent, short circuit, open circuit, and reverse connection; all protections are self-recovering ensuring controller longevity without damage. · Wide Voltage Compatibility: Supports automatic 12V/24V system voltage adaptation, compatible with various solar setups. · Adjustable Charging Parameters: Boost charging voltage (14.4V), floating voltage (default 13.7V), discharge cut-off voltage (default 10.7V), discharge recovery voltage (12.6V), and charging recovery voltage (13V) can be fine-tuned to meet specific battery requirements. · Low Standby Current: Less than 10mA consumption ensures energy-efficient operation and minimal battery drain. · Durable ABS Material & Robust Design: Made from high-quality ABS in a sleek black finish, capable of operating in temperatures ranging from -35℃ to +60℃ for dependable performance in various environments. Specifications: · Item Type: Dual USB Solar Charge Controller · Material: ABS · Model: K1688 · Color: Black · System Voltage: 12V/24V Automatic Adaptation · Maximum Photovoltaic Voltage: 50V · USB Output: 2 USB outputs, 5V/2.5A max · Boost Charging Voltage: 14.4V · Floating Voltage: 13.7V (adjustable) · Discharge Cut-off Voltage: 10.7V (adjustable) · Discharge Recovery Voltage: 12.6V (adjustable) · Charging Recovery Voltage: 13V · Standby Current: <10mA · Working Temperature: -35℃ to +60℃ · Maximum Photovoltaic Input Power:  - 10A: 130W (12V), 260W (24V)  - 20A: 260W (12V), 520W (24V)  - 30A: 390W (12V), 780W (24V) Package Includes: · 1 x Dual USB Solar Charge Controller This Dual USB Solar Charge Controller is an ideal solution for managing your solar charging system efficiently, with comprehensive protection features and flexible settings to optimize battery life and system stability. Its combination of smart charging technology and user-friendly interface ensures consistent performance for off-grid solar power applications.