A kind of emergency duty lamp system for vehicle provides a power supply by a sub- battery unit and is arranged to carry out normal operation. One vehicle battery part (110) provides a power supply to each electric-electronic device of vehicle. One generating unit (120) loading vehicles battery section. One sub- battery unit (210) receives power supply from vehicle battery part, maintains a charge state. The reflux of interrupt unit (220) is connected between vehicle battery part and sub- battery unit. One door switch part (300) is mounted in a front door and a side door.
展开▼
