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From: Mike Mocha <mocha@mailexcite.com>
Subject: Philips TL-S bulbs
Newsgroups: sci.electronics.design
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Date: 09 Apr 2024 19:25:17 GMT
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Hey all,

I have an old rail car design that used ballast-free florescent tubes in a 
600 VDC circuit; bulbs used in series with power resistors, the circuit 
basically put 100 VDC or 60 VDC over each bulb.  There's no AC source on 
the car.

I can't find these tubes on the market anymore.  The last time we 
purchased them was in 2007 and they had to be manufactured special by 
Philips.  We're thinking of moving to regular T8 tubes with a DC inverter 
ballast.  Anyone here know more about why these are not made anymore or 
have any ideas where to look?

Thanks,
Mike


https://www.assets.lighting.philips.com/is/content/PhilipsLighting/
comf2571-pss-global