Highlight

Highlights or hot spots are very bright, well-lit and often overly lit areas in your setup, causing a very dense, dark spot on your negative. Hot spots appear when one area of your scene is overly lit, and can be avoided by diffusing or lowering the output of light on that area.

StudioLighting.net

About StudioLighting.net

A Free Online Resource for Studio Lighting and Photography Information: Tips, Tutorials, DIY Instructions, Reviews, and Much More.