Please put the emergencylamp to the place where there is enough sunshine all through the day when you use the solar panel to charge. Explore the panel to the sun.
利用太阳能充电时，把应急灯放在整天都能阳光充足的地方，注意不能有东西挡住太阳能板；
2
However, we still use the emergencylamp of the 40s, and when emergency braking or an accident takes place, only by manual can the driver make alarm light flashed.
This paper proposed a design of emergency lighting in which the economical fluorescent lamp is used. The electronic circuit of emergencylamp which supplies DC power is given.