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Ballast type and impact on lamp life

Ballast type and impact on lamp life


This was an experiment conducted at the LRC at RPI. We love to jump on HF and the ballasts themselves have a tendency to fail, but you know, they're not bad on lamps.

LRCRPI.png sylv_ifspectrum.jpg C50C75SPD.png OSIPHIL.jpg

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Filename:LRCRPI.png
Album name:Luminaire / Technical documents
Keywords:Gear
File Size:114 KB
Date added:Dec 28, 2014
Dimensions:593 x 485 pixels
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eclipsislamps
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Dec 28, 2014 at 05:11 AM Author: eclipsislamps
The only real problems with electronic ballasts is poor electrolytic caps, poor soldering and bad, unsafe, conservative designs and more importantly: poor heat management. If these problems were all fixed, electronic ballasts could in theory last decades. These are the reasons I refuse to use them in anything other than experiments and prefer to make my own for meaningful uses.

Keeping electrodes hot and gases ionzied.

themaritimegirl
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Dec 28, 2014 at 11:30 PM Author: themaritimegirl
This is for real? Remarkable, I never would have expected electronic to have such a profound increase in lamp life. Too bad they didn't include magnetic preheat and electronic programmed start, as well.

Electrical Engineering Graduate
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Luminaire
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Dec 30, 2014 at 01:23 PM Author: Luminaire
TMM, Here's a thread I made on it. I attached the report.
http://www.lighting-gallery.net/index.php?topic=3862.0

The report is from late 1990s when T8s were just starting to see use.
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