Features:Color LCD to display all parameters.Built-in energy-saving backlight LCD, display better and more convenient.DC 12V and USB 5V output, available for DC lamp and phone charging.With output switch, intelligent control, easy to operate.Use single-chip microcomputer control.Fully automatic operation.With separated temperature detected circuit, high precision temperature compensation function.PWM charging mode can improve system efficiency and prolong the life span of the battery.Protection:Over-load protection;Short-circuit protection;Lighting protection;Under-voltage protection;Over-charging protection;Reverse polarity protection.