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Philips Cool White Supreme U bents

Philips Cool White Supreme U bents

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They already got the aging marks, they are a pattern that looks like they are being overdriven, but they are not.

image~32.jpeg image~575.jpg image~547.jpg image~546.jpg

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Filename:image~547.jpg
Album name:silverliner / circline and u-bent fluorescent tubes
Keywords:Lamps
File Size:245 KB
Date added:Feb 16, 2015
Dimensions:2465 x 1848 pixels
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don93s
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Feb 17, 2015 at 12:27 AM Author: don93s
I've noticed that many times U-bend lamps can get excessive aging marks compared to their linear counterparts.
Silverliner
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Feb 17, 2015 at 03:53 AM Author: Silverliner
I was checking some of my Westinghouse F40T12s, some of them have similar patterns as you see on the CWS U bents here, others looked like the SPEC 35s in the other pic.

May all the great lighting technologies have their place in history.

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streetlight98
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Mike McCann


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Feb 17, 2015 at 04:31 PM Author: streetlight98
Wow they're blackening pretty fast! CWS hasn't been around that long, has it? My grandpa's HO fixture has a pair of F96T12/HO/CW Altos in it and they've already blackened. The ends glow BLUE. I wonder if it's actually a VHO fixture? Or so Philips T12HOs normally glow blue at the ends?

To resist is to piss in the wind, anyone who does will end up smelling.

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Feb 17, 2015 at 05:40 PM Author: Silverliner
That's actually normal for the unguarded ends on these Phileeps HOs. I've seen some age like that and they aged fast too. Oh I remember that one of them burnt out after a year or two. I saw a failed pair of CWS U bents in this store also, one lamp failed and the other went dim, as it is a 2 lamp series magnetic ballast. Rubbish!

May all the great lighting technologies have their place in history.

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streetlight98
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Feb 17, 2015 at 06:16 PM Author: streetlight98
Yeah I try to stay clear of Philips, usually sticking with GE or Sylvania. Lately I've been favoring GE lamps. The 900 series Sylvanias sound promising but I have yet to see them sold locally. RI doesn't seem to get all the cool stuff others find elsewhere in the US lol. I still haven't seen the Utilitech 2-pack 175W MVs show up here or the Great Value fluorescents at WalMart.

Ah so the blue ends on Philips HOs are normal? My grandpa buys Philips lamps, only because they are what's sold at Home Depot. He's got some sort of contractor's credit card with Home Depot so he always shops there. I had gotten him to buy a case of Philips 5000K lamps since they were non-alto. I don't know if the lamps are really full mercury or if they're just not altos (doesn't make sense to have them full-mercury since that means they have to stock different amount of mercury for different lamps but whatever) but they seem to last longer than the regular Altos. He has some 2008 Alto F40/DX lamps in service and they seem to last quite a while too. I actually find that I replace more recent tubes in his fixtures than I do older lamps. He's got some 34W full-mercury Philips-made no-name lamps from 1996 still in service too! But some of those 2013 Altos he's got are already dying.

Over the summer I had replaced the Harmony House F40 preheater in the bathroom at his shop with a 2X F32T8/IS industrial (it was originally a F40/RS industrial with a 1977 Therm-O-Matic ballast). I used an Advance instant start ballast and Philips /735 Altos. So far the fixture is still going strong. I'm wondering what will fail first: the crappy ballast or the crappy lamps.

To resist is to piss in the wind, anyone who does will end up smelling.

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