Item Type: MPPT Solar Charge Controller Material: Aluminum Size: Approx. 13.5x7x2.5cm / 5.3x2.8x1.0in System Voltage: 12V 24V Adaptive Technical Index: USB PD, QC3.0 Package List 1 x MPPT Solar Charge Controller Please allow some error in manual measurement. 1Storage Function, LCD Display: Charge controller built in industrial microchip, with excellent storage function; large screen liquid crystal display, adjustable charging and discharging parameters. 2High Efficiency: PWM battery charging, built in maximum power tracking algorithm, can significantly improve the energy utilization efficiency of the photovoltaic system, about 1520 percent higher than the traditional charging efficiency 3Multiple Protection: Solar controller internal overcurrent protection, short circuit protection, open circuit protection and reverse connection protection are all self recovery and lossless controllers, with double MOS reverse current protection and low heat generation. 4Heat Dissipation: MPPT solar charge controller has excellent heat dissipation performance, ensuring that the controller maintains full current output for a long time. 5Applicable: MPPT solar charge controller is made of premium aluminum, which is durable, corrosion resistant and has a long service life. Widely suitable for battery types such as colloid, and lithium battery, etc.