Feature:1. This controller has built‑in microcontroller, easy to operate, use it with confidence.2. One‑key setting, digital display, with automatic memory function, safe to use.3. Built‑in short circuit protection, open circuit protection, reverse connection protection, overload protection, reverse current protection, low heat.4. Small and exquisite, beautiful appearance, easy to carry and store, bring you convenience.5. With LCD, the readings are clear, allow you to have information at any time when you use it.Specification:Condition: 100% Brand NewItem Type: Controller (Just for off-grid photovoltaic solar energy system)Material: ABSColor: BlueProduct Size: Approx. 13.4 x 6.8cm / 5.3 x 2.7inThe regulator is just suitable for -acid batteries: For OPEN, for AGM, for GELRated Voltage: 12V 24V AutomaticApplication: Solar System ControllerCurrent: 10AWeight: Approx. 157g / 5.5ozPackage List:1 x Controller1 x User ManualNote:1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Connect the battery to the charge regulator‑positive and negative. If a 12V battery is detected, it will display 1; if a 24V battery is detected, it will d