Last viewed - 100W HPS Westinghouse Lamp

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:	55 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

Gallery of Lights

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.