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100W HPS Westinghouse Lamp Etch is long gone on this but it's 100W HPS since it's got the length arc tube of a 100W lamp and I'm assuming is Westinghouse because of the BT25 envelope. Keywords: Lamps

100W HPS Westinghouse Lamp

Etch is long gone on this but it's 100W HPS since it's got the length arc tube of a 100W lamp and I'm assuming is Westinghouse because of the BT25 envelope.

080414_052.JPG 080414_053.JPG 080414_054.JPG 080414_055.JPG 080414_057.JPG
File information
Filename:080414_054.JPG
Album name:Mike / My Lamps
Keywords:Lamps
Filesize:163 KiB
Date added:Aug 04, 2014
Dimensions:1586 x 797 pixels
Displayed:57 times
Color Space:sRGB
DateTime Original:2009:03:27 01:34:18
Exposure Bias:0 EV
Exposure Mode:0
Exposure Time:1/17 sec
FNumber:f/2.8
Flash:No Flash
Focal length:28.8125 mm
Light Source:Unknown: 0
Make:Vivicam
Model:V5024
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=17982
Favorites:Add to Favorites

Comment 1 to 4 of 4
Page: 1

Silverliner14B   [Aug 05, 2014 at 10:51 AM]
It's a Philips, the change in the arc tube support occured in 1984, after the Philips takeover. The date code should be on the stem press.
streetlight98   [Aug 05, 2014 at 06:34 PM]
Ah okay thanks. The only numbers on the stem press (the area inside near the base?) is 4 5.
GEsoftwhite100watts   [Jan 25, 2015 at 01:11 AM]
Looks like it spent some time outside, in service, possibly in salty air!
streetlight98   [Jan 25, 2015 at 01:16 AM]
Yeah i think he had it on display outdoors. It still works great though! (well, it could be a cycler since i haven't lit it for more than 20 minutes at a time)

Comment 1 to 4 of 4
Page: 1
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