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我国汽车车厢内照明一直采用白炽灯。白炽灯耗电量大光线较暗,公共汽车、电车晚上在城市中行驶因车内射出黄色光线而影响市容。广大乘客和乘务员早想用
China’s car interior lighting has been using incandescent lamps. Incandescent power consumption Large light darker buses, trams at night in the city due to the yellow light emitted inside the car and affect the city. The majority of passengers and flight attendants early use