Product features 1.Increases PV Array Output by up to 30% 2.Advanced Continuous Maximum Power Point Tracking 3.Full Power Output in Ambient Temperatures up to 104°F (40°C) 4.Battery Voltages from 12 VDC to 60 VDC 5.Programmable Auxiliary Control Output 6.Built-in 128 days of Data Logging 7.Fully Network Integrated and Programmable support for a wide range of nominal battery voltages and the ability to step-down a higher voltage solar array to recharge a lower voltage battery bank. A built-in, backlit 80 character display shows the current status and logged system performance data for the last 128 days at the touch of a button.