screen LCD display, charge and discharge current display, cumulative power generation and discharge power query, temperature display, light control delay control; adjustable charge and discharge parameters, with power-off memory and other functions.Built-in short circuit protection, open circuit protection, reverse connection protection, overload protection. Reverse current protection, low calorific , with self-recovery function, will not damage the controller.Real-time display of temperature, charging current and discharge current. Current autofocus MPPT tracking charging, high charging efficiency, charging process does not stop detection, two-way focus tracking.type:30AColour:blackMaterial:plasticPackage Contents:1 x Solar ControllerOnly the above package content, other products are not included.Note: Light reflection 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.