halogen light A powerful light source that enables a viewer to examine coins closely. This type of light reveals even the tiniest imperfections.
halogen light: an extremely bright light that is often used to grade coins.
haze: a light film on a coin caused by oxidation or PVC.
However, a Tensor light by itself in an otherwise dark room is too bright and will not allow you to properly grade a coin. One important point is to maintain a constant and consistent lighting environment. Fluorescent and halogen lights are not ...
 See also: Half disme, Proof coin, Collector, One Dollar, Half Dollar
  
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