Features: Humanized LCD displaying and double button operation of man-machine interface. Completed technical data for setup and modify. The load control mode can be selected, the timer function can be reset for street light at night. Discharge capacity control. Working storage function: record the total run time of system, record timers of error during running time, record times of full charged battery. Roundly reverse connected protection. Solar panels, battery, solar charge controller positive poles are all connected together, adopting negative MOSFET in circuit. Specifications: USB Output: 2.4A *2 Over Charge Current(V): 13.7V/*2 24V Over Discharge Current(V): 10.5-11V/*2 24V Temperature Compensation: -3mv/℃/cell Empty Load Wastage: <45mA Display: LCD Display Charging Type: MPPT Waterproof Grade: IP32 Material: Plastic Color: Black + Orange Size: 17.5 * 14 * 4cm/6.9 * 5.5 * 1.6in(30A), 21 * 19.2 * 5.5cm/8.3 * 7.6 * 2.2in(50A), 22.8 * 20 * 5.5cm/9 * 7.9 * 2.2in(70A) Suitable for automobiles and motorcycles,or small household appliances. Package Weight: 480g-1284g Package List: 1 * Solar Charge Controller 1 * User Manual Notes: First, you need to press the MCU control button for about 3-4 seconds, and then there will be a management interface on the screen. Finally, you need to press the MCU control button again, which will save the controller record data w hen the display does not flicker. . 5. Use a 12V battery with a 17 volt solar panel, use a 24V battery with a 34 volt solar panel.