Bright, resistant, more economical than our good old incandescent bulb, easy to recycle, the halogen lamp that celebrates its 55th anniversary this year, is a fifty-year-old full of charm!
What Is A Halogen Bulb?
Let’s start with a small technical reminder to better understand how a halogen bulb works and its strengths.
The halogen bulb operates on the same principle as the classic incandescent bulb, the one presented by Edison at the Universal Exhibition of 1881: That is to say a metal filament incandescent in a glass bulb. Different improvements have been made in order to obtain more luminosity. The carbon has been replaced by a more heat resistant tungsten filament. But the heated the more the filament becomes brittle. It loses metal atoms that will deposit on the glass and end up in the dark. As early as the 1930s, the glass bulb was filled with inert gases (krypton or argon) to trap these metal particles: By combining with the gas, they are deposited directly on the filament. In 1959, EG Zubler, a General Electric chemist, had the good idea to take a quartz glass more heat resistant and use high-pressure halogenated gases. Thus the tungsten filament worn at a very high temperature produces a more brilliant light and the halogen gases by protecting it ensure its longevity.
Best Uses Of The Halogen Bulb
If the halogen bulb is very present in our houses it has many advantages: A warm light, an instant ignition, a life of 2000 to 3000 hours, an easy recycling since it contains no Hazardous gases such as compact fluorescent bulbs.
Due to its beautiful brightness with excellent color rendering you can use it to illuminate all volumes from the kitchen to the dining room through the living room. In the latter, a dimmer will allow you to play on the atmospheres: good brightness for reading, dim light for … what you want! But be careful, the use of a dimmer can reduce the life of the bulb. See, at the end of the article, how to alleviate this disadvantage.
The variety of shapes: standard, spherical, flame, linear or pencil, tubular, capsule, with reflector or spotlight allows to install it whatever the type of luminaire. It also finds its perfect place in the garden to illuminate your driveway, your terrace and enjoy the sweet summer evenings. It is also compatible with a presence detector .Whether it rains, sells or freezes, it will not let you down, contrary to its sister, the fluocompact that is chilly and not resistant to the cold .
A small trick to improve the duration of a halogen bulb used with a dimmer : Leave the bulb at its maximum intensity for a few minutes before reducing with the dimmer according to your convenience. This “hot shot” will allow the filament to regenerate.