illumination effect

例句：

1. 1. The new street lamps illuminate the night sky.
   新街灯照亮了夜空。
2. 2.The project aims to improve public lighting and enhance the city's illumination effect.
   该项目旨在改善公共照明并增强城市的照明效果。
3. 3. The illumination effect of the light is very good.
   灯光的照明效果非常好。