This dental equipment is used for polymerization of light-cure resin-based composites, used on multiple dental materials that are curable by light.

There are 4 basic types of dental curing light sources that include tungsten halogen, light-emitting diodes (LED), plasma arcs, and lasers. However, the two most commonly used are halogen and LEDs.

Based on the International Organization for Standardization, a dental curing light should be 300 mW/cm2 with a wavelength bandwidth of 400–515 nm.