This invention provides an illuminant device and its light reflecting shade for reflecting a light emitted from a light source. The invention further includes a regulator occupying a portion of the chamber to define a chamber operating volume and flowrate, the regulator having a at least one outer diameter corresponding to an inner diameter of the passage to substantially inhibit gas flow from passing through the second opening. and pressure the range of approximately 0 to approximately 250 psi; the product obtained is cooled and recrystallized from ethanol.