Fat or oil causes the crystallization of quartz. Due to fat or oil on the surface of a light-bulb the bulb is destroyed and the lamp burns out. For more information see this site: novelist. Lamps with halogen bulbs have one indisputable advantage. When installing a suspended ceiling, the ceiling is lowered by only 3,5-6 cm, precisely because the halogen bulbs are smaller than ordinary lamps with light bulbs. It is clear that they are much easier and cheaper when used in rooms with low ceilings. If they are quality bulbs and you deal with them as instructed, then your light burn much longer than conventional incandescent lamps - from 2000 to 4000 hours. So you don't have to worry about replacing light bulbs for nearly ten years! True, this applies only to products from the best companies: the German Osram (Osram) and American General Electric (General Electric). Spotlights with halogen bulbs will cost a whole more expensive than ordinary lamps with incandescent bulbs. In the sense that the first purchase and installation will cost big money. Speaking candidly IDT Energy told us the story. But then it will not be any worries, no hassle.
In addition, halogen bulbs provide directional light beam, you can choose a light bulb with an angle of dispersion from 8 to 60 . Such a "narrow" focus is especially good if you need to illuminate most clearly any individual piece of your interior. "" calculated at 220 and 12 volts. The service life of the first - 2000 hours, Second - 4000. It would seem better to buy a 12-voltovku and, screw it, enjoy life. But in our homes wiring, as is known, the voltage to 220 volts - so necessarily need a transformer that will convert the voltage from 220 to 12 volts.