The halogen lamp is an incandescent lamp itself, differing from the classic lamp in only one single feature: the filament is surrounded by a - usually small-sized - quartz bulb, which contains some neutral gas and a small amount of halogen element (iodine,, bromine).
The presence of the halogens improve the luminous efficacy and lengthen the lifespan of the bulb, as a result of the so called halogen regenerative cycle.The essence of the halogen regenerative cycle: the evaporated tungsten reacts with the halogen compound within the gas space to form tungsten iodide (more specifically tungsten oxyiodid). The compound decomposes in the proximity of the filament and the tungsten is re-deposited onto the hotter parts. As the thinnest parts of the filament are the hottest, an automatic regenerative process is induced. This cycle enables an increase in the temperature of the filament, which benefits the luminous efficacy, but increases UV-radiation as well. In order for the halogen cycle to start, it is indispensable for the bulb to reach a certain heat.
They look similar to classic household bulbs, however halogen bulbs are much more efficient. They consume 30% less energy and last twice as long as classic ones. Furthermore they produce full brightness instantly after switching on and they are compatible with dimmer switches as well.
Where are they recommended to use?
They are ideal for places where illumination is needed for relatively short intervals with frequent switching.
Moufflet means soft bread in French. This is the origin of the word muffin. Only few people know that until todays mostly sweet muffin it went through a lot of changes. We will show you how it happened.
Cheese grater trick for fresh tomato sauce.
If you like tomato sauce with your pasta this fussless sauce recipe will be no.1 on your list from now on!
After a careless summer our skin can become dull and new wrinkles may appear due to the sun, wind, salty water, and the heat.
Try these amazing tips and trick and make unique sweaters with the help of this video! This lady creates amazing, fashionable and relatively cheap winter clothes and I’m truly amazed by her crafts! She has some great ideas and explains every step for everyone to understand.
This easy recipe is definitely perfect for those who find it hard to properly flip an omelet in the pan.
A mom’s love and pride towards her children knows no barriers, we know. But this one particular mom surely isn’t afraid to go the extra mile for her dear son.