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Differences between HPI burner generations
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Shown here are two different 400 W HPI burners in operation. The one on the left corresponds to gen 2, produced from 1969 to 1990 and featuring Philips's famous 3-piece barrel construction (see there for more information), while the one on the right is much more recent, i.e., gen 5 introduced in 2005 and still in production. An operation in the vertical position reveals the superiority of the latest HPI generation: the plasma is far more homogeneous and has a higher sodium density while the amount of dosed additives is lower than in older lamps. This is evidence of both a higher operating temperature and a more even temperature distribution of the gen 5 burner. This comparison shows how far Philips went with the development and improvement of its HPI lamp platform.
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Search![Differences between HPI burner generations
Shown here are two different 400 W HPI burners in operation. The one on the left corresponds to gen 2, produced from 1969 to 1990 and featuring Philips's famous 3-piece barrel construction (see [url=https://trad-lighting.net/gallery/displayimage.php?pid=664]there[/url] for more information), while the one on the right is much more recent, i.e., gen 5 introduced in 2005 and still in production. An operation in the vertical position reveals the superiority of the latest HPI generation: the plasma is far more homogeneous and has a higher sodium density while the amount of dosed additives is lower than in older lamps. This is evidence of both a higher operating temperature and a more even temperature distribution of the gen 5 burner. This comparison shows how far Philips went with the development and improvement of its HPI lamp platform.
Keywords: Lamps](images/image.gif?id=1808327357524 "Click to view full size image
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Differences between HPI burner generations
Shown here are two different 400 W HPI burners in operation. The one on the left corresponds to gen 2, produced from 1969 to 1990 and featuring Philips's famous 3-piece barrel construction (see [url=https://trad-lighting.net/gallery/displayimage.php?pid=664]there[/url] for more information), while the one on the right is much more recent, i.e., gen 5 introduced in 2005 and still in production. An operation in the vertical position reveals the superiority of the latest HPI generation: the plasma is far more homogeneous and has a higher sodium density while the amount of dosed additives is lower than in older lamps. This is evidence of both a higher operating temperature and a more even temperature distribution of the gen 5 burner. This comparison shows how far Philips went with the development and improvement of its HPI lamp platform.
Keywords: Lamps")
