roof light
noun
1- a window panel built into a roof to admit light天窗, 采光天窗, 屋顶窗。
1.1
- a small interior light on the ceiling of a motor vehicle（车内的）车顶灯, 顶篷灯。
1.2
- a flashing warning light on the top of a police car or other emergency vehicle（警车或其他应急车的）警（示）灯。