This solar charge controller can automatically manage the working of solar panel and battery in solar system. It is easy to set up and operate.For protecting the lifespan of your battery, once the voltage of the battery drop below 8V, the solar controller will turn off automatically (LCD will be unavailable at the same time).It’s an very Intelligent unit for solar panel!This Charger controller is for 12V/24V. When installing for the first time, please make sure the battery has sufficient voltage so that the Charger controller can recognize the normal battery type.Install the Charger controller to the battery as close as possible to avoid voltage dropping caused by over long wires and affect normal voltage judgment .Caution: Solar Charger Controller should connect the battery first,and then connect the solar panel,and finally the load!The disassembly sequence is contrary to the wiring order.Specification Rated charging current: 10A/20A/30A(optional)Working voltage:12V/24V auto Float charging voltage:13.8V/27.6V（Adjustable）Undervoltage protection:10.7V/21.4V (Adjustable)Over voltage protection:16.5V/33VLow voltage recovery:12.6V/25.2V (Adjustable)Solar panel charger controller voltage:≤50VBoost voltage:14.4V/28.8VUSB Output:5V/1.5A each No-load loss≤10mAWaterproof：IP32Short circuit or overload (1.25 times rated current in 60 second or short circuit): battery icon flashes, regularly try to restore automatically Charge Mode: 3 kinds of charge control (directly charge, boost charge, floating charge)

This offer you only get at Jumla panel hub suppliers