The Otoflash is a light polymerization chamber for the hardening/curing of light curing resins for jewelry, dental, and otoplastic applications. Two photoflash lamps at the bottom of the curing chamber operate in a work mode with a frequency of 10 flashes per second. The photo-flash lamps produce a very intensive light radiation in a spectrum from 300 up to 700 nm. Because of this intensive light radiation, a better hardening of the materials is possible, resulting in materials with good physical values and reduced content of residual monomer versus using other lamp types with a different light emitting spectrum.