Features: 100% Brand new and of high quality Color:Black The product can automatically manage the work of Solar Panel and battery in solar system which is below 180W(12V) or below 360W(24V) auto switch Over-load for protection Short-circuit for protection for Lightning for protection Reverse discharging for protection Reverse-polarity for protection Under-voltage for protection Over-charging for protection Output Voltage: 12V/24V Automatically distinguish voltage Max load Current:12A Full Charge Cut:13.7V/27.4V Low Voltage Cut:10.5V/21V Temp ompensation:-3mv//cell Zero Load Loses:20mA Min Wire Size:20mA Min Wire Size:2.5mm^2 Voltage Drop:!#!lt!*!210mv Dimension: 10 x 9.5 x 3.7cm( 4 x 3.7 x 1.5 " ) Package include: 1 x 10A solar charge controller 1 x Manual