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Alto won't die

Alto won't die

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This lamp is in the kitchen at my work and was doing its death dance, pulsating rhythmically and flashing purple at the end. Lots of blackening and it looks EOL. Yet it's still going strong a week later and not flashing anymore. The arc must have found a stable spot. It's on an instant start electronic ballast and a motion sensor so it gets switched many times a day too.

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Light Information

Light Information

Manufacturer:Philips
Lamp
Lamp Type:F32T8

File information

File information

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Album name:arcblue / Lighting in Washington State
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Keywords:Lamps
File Size:229 KB
Date added:Jan 28, 2018
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Date Time:2018:01:23 12:02:07
DateTime Original:2018:01:23 12:02:07
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streetlight98
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Mike McCann


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Jan 28, 2018 at 04:34 PM Author: streetlight98
Ouch! The six lamp highbays at my old high school were on individual motion sensors and had ISH Quicktronic ballasts and Sylvania XPS lamps. Went back to visit recently and most are still working from 2010 so that's pretty cool. Granted they're only used 180 days a year but on/off a considerable amount of the day.

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F96T12 DD VHO
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Jan 28, 2018 at 04:41 PM Author: F96T12 DD VHO
Lamps always do that for me

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suzukir123
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Jan 30, 2018 at 04:02 AM Author: suzukir122
I've seen this happen when I was in high school... also with a philip alto, only it had a different color temp. (3,000k) It
was also on an electronic instant start ballast. So this phenomenon might be more common than I thought. It took about a week
as well before I noticed in class that it had finally burned out.

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