100% brand new and high quality Features: 1. Adjust the charging current and decides whether supply power to the load or not. 2. Prevent the battery from over-charging and over-discharging. 3. Prevent the battery from supplying power to solar panels during nights. 4. It will automatically cut off the load from the system when the battery voltage is low. 5. Can automatically set charge-off voltage according to the battery voltage grade. 6. It has thunder protection without worrying about the thunderstorm. Solar Charge Controller only, other accessories demo in the picture is not included. Specification: Material: ABS Type: Solar Charge Controller Rated Voltage: 12V / 24V (Auto Switch) Max Load Current: 5A/10A / 15A / 20A / 30A (Optional) Input Voltage Range: 12-20V / 24-40V Length1m Charge Loop Drop: 250mV Length1m Discharge Loop Drop: 50mV Full Charge Cut: 1.37V-14.4V / 27.4-28.8V (Data under no load condition) Low Voltage Cut: 10.5-11V / 21-22V Temperature Compensation: -3mV//Cell No Load Loss: 10mV (10A/15A); 20mV(20A/30A) Efficiency: 95%-97% Max Wire Area: 2.5mm(10A/15A); 4mm(20A); 6mm(30A) Ambient Temperature: -25-55 Color: Shown as pictures Optional Style/Current: 5A, 10A, 15A, 20A, 30A Package Size: 14.5 x 8 x 4cm(5.71 x 3.15 x 1.57in) Note: 1. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Solar Charge Controller 1 x User Manual (English)