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GE Lucalox 250 HO The Philips Dyno won't even entertain trying to start this, but my trusty wire wound gear tray launched it into life, and immediately the massive high Xenon pressure showed itself on start!

GE Lucalox 250 HO

The Philips Dyno won't even entertain trying to start this, but my trusty wire wound gear tray launched it into life, and immediately the massive high Xenon pressure showed itself on start!

IMG_5069.jpeg IMG_5161.jpeg IMG_5177.jpeg IMG_5183.jpeg Let_it_snow21.JPG
File information
Filename:IMG_5177.jpeg
Album name:AngryHorse / Sodium lamps, (high pressure)
Manufacturer:GE
Type/Model:Lucalox 250W/T/HO
Wattage:250 Watt
Filesize:3120 KiB
Date added:30 Aug, 2026
Dimensions:2730 x 2048 pixels
Displayed:32 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=25503
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Comment 1 to 10 of 10
Page: 1

AgentHalogen_87   [30 Aug, 2026 at 07:03 PM]
Impressive it still fires. Fancy electronic gear has this nasty habit of wanting to protect itself from an ageing lamp, but a bit of good old brute force form copper gear does the trick nicely!
AngryHorse   [30 Aug, 2026 at 08:03 PM]
SON always had the best way of telling us they've finished their duty Very Happy, but hats off to GE for this superb longevity!, and still it soldiers on! Cool
Danny   [01 Sep, 2026 at 07:53 AM]
Is it cycling lol
AngryHorse   [01 Sep, 2026 at 08:05 AM]
Doesn't cycle a bit, it has 'drop outs', where it will dim down momentary but then comes back up. It runs bloody hot though Shocked
dor123   [01 Sep, 2026 at 10:52 AM]
Definitely ignitor firing at each 0V of the half cycle to prevent the lamp from extinguishing. This can sometimes happens even with regular ignitors.
Which ignitor you use for this lamp?
AngryHorse   [01 Sep, 2026 at 04:22 PM]
Thorns G 53455 superimposed, GB made
FrontSideBus   [01 Sep, 2026 at 04:31 PM]
Be interesting to get it on a scope.
dor123   [01 Sep, 2026 at 04:35 PM]
So it isn't an anti-cycle ignitor, and made by Thorn rather than Sabir, like the Thorn APU and Super APU ones. Still this phenomenon can occur even with a regular ignitors.
Ash   [01 Sep, 2026 at 10:25 PM]
the only thing that makes "anti cycle" ignitors special is some logic that tells it to not ignite when conditions are met. Otherwise they are not that different... Hey. Eltam's EHID ballasts do that too and they are electronic ballasts, although the ignitor in them is probably just an embedded ordinary "magnetic" ignitor
FrontSideBus   [02 Sep, 2026 at 07:28 AM]
Indeed, as far as I was aware, anti cycle ignitors simply give up trying to start the lamp when it detects it has cycled a couple of times.

Comment 1 to 10 of 10
Page: 1

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