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.
Source: http://www.asalite.com/en/news/HALOGEN_-_The_most_common_light_source_in_the_world
heck out these cute puppies in this compilation of funny puppy videos. Puppies are the cutest. Pug puppies, bulldog puppies, labrador puppies, and more, they are all very adorable and also funny.
2018 is the absolute year of slime craziness. All kids go mad for making slimes.So we are showing here 4 easy DIY Slimes WITHOUT GLUE! DIY SLIME! How To Make The BEST SLIME WITH NO GLUE! This is a NO GLUE Slime Recipe!
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.
All girls would like to have beautiful hair, we are going to show you here some tips and tricks how can you achieve it.
Check out these amazing hairstyle ideas and find out how you can make your hair longer, thicker and healthier
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.