Product overview A compact solar charge controller for 12 V and 24 V battery systems that combines intelligent three phase charging control, a clear LCD for live system feedback, and multiple builtin protections. Designed for small offgrid arrays, RVs, boats, and lighting systems, it provides reliable power management and convenient USB charging. Key benefits Smart charging management: Industrial control chip implements full three phase charging to keep battery charging efficient and balanced. Clear system feedback: Large LCD displays charging and discharging current, battery temperature, and other key parameters for easy monitoring. Builtin protections: Auto reset overcurrent protection, short circuit protection, open circuit detection and other safeguards help protect connected equipment and the controller. Versatile controls and memory: Light control, relay control, adjustable parameters, and power off memory make setup and daily use flexible and user friendly. USB charging: Four USB outputs at 5 V with up to 2.5 A maximum provide a convenient way to charge phones and other USB devices. Specifications Item type: Solar controller System voltage: 12 V and 24 V automatic adaptation Maximum photovoltaic voltage: 23 V maximum when used with a 12 V battery; 46 V maximum when used with a 24 V battery USB output: 4way USB output, 5 V 2.5 A maximum Working temperature: 35 to +60 C Material: ABS Product size: approximately 16.5 x 10.5 x 4.5 cm (6.5 x 4.13 x 1.77 in) Weight: approximately 313 g (11.04 oz) Practical uses Offgrid cabin or shed: Manage a small PV array to keep batteries charged, run LED lighting, and power small devices via USB. RV or campervan: Automatic 12 V and 24 V adaptation and builtin protections make it suitable for vehicle solar setups and mobile power management. Outdoor lighting systems: Use light control and relay functions to automate LED lights and maintain battery health in remote installations. What is included 1 x Solar controller 1 x User manual Installation note Refer to the included user manual for detailed installation and wiring instructions. Follow recommended wiring and system voltage limits, in particular the maximum photovoltaic voltages for 12 V and 24 V battery systems.