This light is like a bare light bulb hanging from the ceiling - it radiates…
Vectorworks Tip #107 – Visualization – Area Light
Area Lights are very powerful in creating a lighting scene. When photographers want to fill an area of light, they use a large reflector, or a flash with a large disperser on it. An area light can do the same thing for your scene. Have a look at the two viewports, notice how the area light in the window lights the scene. Actually, in the area light viewport there are several area lights.