30a Solar Charge Controller with 5v Dual Usb Ports Display Adjustable

The controller is 12V/24V (or 48V) automatically adapt to the first installation, please make sure the battery has enough voltage so that the controller can recognize the correct battery typeInstall the controller as close to the battery as possible to avoid voltage drop caused by too long wires and affect normal voltage judgmentThis controller is only used for various lead-acid batteries (including openings, seals, gels, etc.), please do not use it to charge other batteries (including lithium batteries, Jin hydrogen batteries, etc.)This controller can only use photovoltaic panels as the charging source, please do not use DC or other power sources as the charging sourceThe controller will heat up when running. Please install the controller on a flat and well-ventilated surface.Colour:As shownMaterial:Plastic + MetalPackage Contents:1 * controllerOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.