Maker's Name: 
Mirabella
Where made: 
China
Dimensions: 
5.5 × 5.5 × 9.5 cm

The filament is encloed in a glass tube containing Iodine. Heated Tungsten evaporates, combines with Iodine and is deposited back on the filament.

The filament runs at a higher temperature than the standard Tungsten in Argon incandescent bulb.