Incandescent Reflector Light Bulb (IRLs) are the very common cone-shaped light bulbs most typically used in track lighting and "recessed can" light fixtures (low-cost light fixtures that mount flush with the ceiling such that the socket and bulb are recessed into the ceiling).
Such as other
Incandescent Bulb, HIR lamps use a tungsten filament, but the filament at HIR lamps is surrounded by a capsule full of a halogen gas while the glass has been coated with a substance that reflects infrared lighting. Adding a halogen gas along with also an infrared coat to a incandescent plant lighting increases the efficiency of the
incandescent plant light in many ways. By representing radiant energy, or heat, back on the filament, the working temperature increases, leading to higher light output in the given wattage. The halogen gas increases the durability of the filament by introducing a regenerative cycle, in which the evaporated tungsten in the heated filament combines with the halogen gas to earn a gaseous chemical, which makes it possible for the tungsten to become re-deposited while the chemical comes into contact with the filament. Increased coatings and innovative reflector designs may further boost HIR lamp efficiency and reduce annual power consumption of IRLs.
