Characteristics:<br> Automatic identification system voltage, 12/24V automatic recognition.<br> Humanized LCD display and support two buttons of human-machine interface.<br> Supplemented technical data for configuration and modification.<br> Load control mode can be selected, timer function can be reset for street lighting at night.<br> Control of discharge efficiency.<br> Work storage function: records the total operating time of the system, records error counters during operation, records the times of a fully charged battery.<br> Reliable surge protection, short circuit protection, overload protection, overcharge protection, over-discharge protection.<br> Accurate temperature compensation, automatically correcting the charging and discharging voltage, improving battery life.<br> Round reverse protection connection.<br> Solar panels, battery, positive poles of solar charging controller are connected to each other, adopting negative MOSFET in the circuit.<br> Technical data:<br> Current: 30A, 50A, 70A (optional)<br> Rated voltage: 12/24 V<br> USB Output: 2,4 A*2<br> Over charging current (V): 13,7V/*2 24V<br> Excess discharge current (V): 10,5-11 V/*2 24 V<br> Temperature compensation: -3mv/℃/cell<br> Empty charge loss: < 45mA<br> Loop voltage drop: < 200mv<br> Display: LCD Display<br> Charging Type: MPPT<br> Waterproof Class: IP32<br> Material: plastic;<br> Color: Black Orange<br> Size: 17.5*14*4cm/6.9*5.5*1.6in (30A), 21*19.2*5.5cm/8.3*7.6*2.2 inch (50 A), 22.8 * 20 * 5.5 cm / 9 * 7.9 * 2.2 inch (70 A) )Suitable for cars and motorcycles or small household appliances. Package Weight: 480g-1284g<br> List of packages:<br> 1 * Solar Charging Controller<br> 1 * User Manual<br> 1. The function of the controller is to protect over-adjustment and excessive voltage.<br> 2. When the battery voltage is too low, the controller stops the output; after charging the solar panel, the cell returns to 12,6V.<br> 3. 12,6 V is the return discharge voltage.<br> 4. The normal voltage of the controller is from 10,7 V to 13,7 V. These two voltage fluctuations can be set manually.<br> If you have problems with use, try adjusting the float voltage to 13,7 V:<br> First you need to press the MCU control button for about 3-4 seconds, then the management interface will appear on the screen.<br> Secondly, you need to press the add button on the screen until the voltage reaches 13,7 V.<br> Finally, you need to press the MCU control button again, which will save the controller record data when the display does not flicker.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store