Feature: 1. The role of the solar charge and discharge controller is to adjust the power delivered from the solar panel to the battery. 2. Use LCD display, all settings can be completed by one‑key operation. Extremely convenient and intuitive to use to control the working status of the entire system. 3. Dual USB output, maximum current up to 2.5A, system voltage 12V/24V automatic adaptation. 4. Automatic disconnection when the battery is full, automatic memory data storage, easy to use. 5. Perfect protection function, electrical protection for reverse connection, short circuit, over current, etc. Specification: Conditon: 100% Brand New Item Type: Solar Charge Controller Material: Plastic Color: As Pictures Shown Optional Model: z10, z20, z30 System Voltage: 12V/24V Automatic Adaptation Rated Charging Current: 10A 20A 30A Rated Discharge Current: 10A 20A 30A Maximum Photovoltaic Voltage: Maximum 23V for 12V Battery; Maximum 46V for 24V Battery Boost Charging Voltage: 14.4V Floating Voltage: 13.7V (Default Value, Adjustable) Discharge Cut-Off Voltage: 10.7V (Default Value, Adjustable) Discharge Recovery Voltage: 12.6V (Default Value, Adjustable) Charging Recovery Voltage: 13V Light-Controlled Turn-On Threshold: PV Panel 8V (Light-Controlled Turn-On has a Delay) Standby Current: ＜10mA Working Temperature: -35℃-60℃ USB Output: Dual USB Output, 5V/2.5A (Maximum) Package List: 1 x Solar Charge Controller 1 x Manual