A ceiling light is a type of lighting fixture, as the name suggests, because the top of the fixture is relatively flat and the bottom is completely attached to the roof during installation

A ceiling light is a type of lighting fixture, as the name suggests, because the top of the fixture is relatively flat and the bottom is completely attached to the roof during installation, it is called a ceiling light. Light sources include ordinary white light bulbs, fluorescent lamps, high-intensity gas discharge lamps, halogen tungsten lamps, LEDs, etc.