It has to be said that, when it comes to choosing a desk lamp, halogen lighting is truly fit for purpose. Having made such a bold statement, it also has to be said that, whilst halogen lamps do indeed have many advantages, this form of illumination is surrounded by many myths, which this article aims to dispel.[DFR::e1c7773a-08ed-5d99-e2c5-50fa6b86e3c7-2687-af|align_right_1]
The first thing we must do is clear up a common misunderstanding – just as with traditional light bulbs, halogen bulbs are incandescent bulbs. With the growing tendency to call to traditional light bulbs ‘incandescent bulbs’, this simple fact is in danger of being lost. In very simple terms, both types of lamp work on the principle of running an electric current through a thin filament until it glows. In traditional bulbs, combustion is prevented because the glass of the bulb keeps oxygen away from the glowing filament.
I halogen lamps, the filament is sealed into a transparent gas-filled pocket, together with an inert gas plus a small amount of halogen. The advantage of this is that the filament continues to work for longer and at higher temperatures. Because of this higher running temperature halogen lamps should be used with caution when setting them into enclosed spaces, such as ceiling and walls.
The tungsten filament in halogen lamps glows with a bright white light; there is none of the cosiness that comes with traditional light bulbs. Some folk find this off putting, however this clear light is superbly suited to paperwork and reading, which means that halogen desk lamps have a clear advantage over traditional lighting.
And this, of course, is the crux of the matter – the characteristics of light produced by halogen lamps are very different from the light we have grown used to. It is not cosy, it is not soft focus, it is not good general illumination; it is clean, it is white, it is directable – it is ideal task lighting.
The reason for the increasing popularity of halogen reading lights and desk lamps is that halogen light shows colours bright and true to help reduce eye strain.[DFR::cfedd926-036a-f2bc-1331-f8f2d77287b1-2687-af|align_left_1]
Because of the brightness, halogen lamps must be shaded. The Benefit of a shaded halogen lamp is that you can use the shade to direct the light where you need it. In the case of a halogen desk lamp, the illumination falls onto your paperwork and is not dissipated around the rest of the room.
The other reason for the rising popularity of halogen lighting is the low running cost. A halogen light typically lasts two or three times longer than a standard bulb. Some commentators, in fact, quote a running life of up to 3,000 hours. At the same time halogen lamps use 10% to 20% less energy.
Halogen desk lamps, it would seem, are the ideal way to appreciate the advantages of this modern light source, without experiencing any of the disadvantages.
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