Use LCD to display all parameters, rich content, intuitive understanding of system operation; Builtin energysaving backlight, better display effect, more power saving,With switching power supply regulated output DC12V and USB5V output, can be used for DC lighting and mobile phone charging; With output switch, intelligent control, easy operation;The system power supply uses switching power supply, which reduces the static working current; temperature detection circuit, with highprecision temperature compensation;Exposed terminal, wiring is more convenient, and series has a large metal shell; Use singlechip control to make the controller intelligent, adaptable, and reliable;Use WPC control based on PWM upgrade to greatly improve system efficiency and extend battery life;Protection function1. Overload protection2. Short circuit protection3. Rupture protection4. Undervoltage protection5. Overcharge protection6. Reverse connection protectionDue to different For batches, there may be differences in product appearance, color, and printed text, which will not affect the use.Specifications: 20AColour:BlackMaterial:PlasticPackage Contents:1x Solar Charge 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 + 13cm.