features. Features: LCD screen display all parameters. With output switch, intelligent control, easy to operate. Fully automatic operation. Microcontroller digital accuracy. A key to open and close the load. PWM charging mode(SOC). With separated temperature detected circuit, high precision temperature compensation function. DC 12V and USB 5V charging for DC lamp and phone. Protection: Overload protection; Short-circuit protection; Lighting protection; Under-voltage protection; Over-charging protection; Reverse polarity protection.