Then at night, the fiber optics work in reverse, lighting up the towers from the inside and with power provided by integrated solar-charged battery packs.
在晚上，光纤反向工作，用集成太阳能充电电池从内部为塔楼照明。
2
Whenever the engine is shut down, auxiliary functions, such as the power steering, air conditioning and lighting, remain unaffected because these are electrically powered by the battery.
当发动机关闭，辅助功能，如动力方向盘、空调、照明、保持不因为这都是这种电动由电池。
3
Adequate emergency lighting (with a battery back-up) should be installed throughout the factory.