20A Solar Charge Controller with LCD Display Dual USB 5V Output PWM Charging Regulator for 12V 260W and 24V 520W Systems

Optimize your solar power system with the versatile K1688 Solar Charge Controller, engineered with durable ABS material and designed for seamless operation in 12V or 24V systems with automatic adaptation. This advanced solar charge controller supports large current dual USB outputs for efficient device charging while offering comprehensive protections to ensure safe and reliable performance. Key Features: · Dual USB Output with High Current Support: Equipped with two USB ports delivering up to 2.5A, enabling fast charging for phones and other electronic devices. · Adjustable Charging and Discharging Parameters: Customize boost charging voltage, floating voltage, discharge cut-off, recovery voltages, and more to optimize battery life and performance according to your requirements. · Large Clear LCD Screen: Easily monitor accumulative power generation, discharge power, system temperature, and operational status through a user-friendly and clear display. · Comprehensive Safety Protections: Built-in overcurrent, short circuit, open circuit, and reverse connection protections provide safer working conditions and extended device longevity. · Smart Industrial-Grade Design: Incorporates an advanced main control chip and anti-backflow circuit to minimize heat generation, enhancing system stability and efficiency. · Wide Operating Temperature Range: Reliable performance from -35℃ to +60℃, suitable for various environmental conditions. · Automatic System Voltage Adaptation: Supports both 12V and 24V systems for flexible installation across different solar power setups. Specifications: · Material: ABS · Model: K1688 · Color: Blue · System Voltage: 12V/24V Automatic Adaptation · Maximum Photovoltaic Voltage: 50V · USB Output: 2 ports, 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 PV Input Power and Rated Voltage Options:  - 10A: 130W (12V) / 260W (24V)  - 20A: 260W (12V) / 520W (24V)  - 30A: 390W (12V) / 780W (24V) Package Includes: · 1 x Solar Charge Controller The K1688 Solar Charge Controller is an essential component for any solar energy system, combining intelligent design, robust protection features, and easy monitoring capabilities. It delivers efficient power management while protecting your batteries and connected devices, making it ideal for residential and commercial solar applications.