Last viewed - 400 watt Metal Halide

File information
Filename:	DSC02458~0.JPG
Album name:	gailgrove / My Collection
Filesize:	143 KiB
Date added:	Jan 17, 2010
Dimensions:	1000 x 750 pixels
Displayed:	70 times
Color Space:	sRGB
Contrast:	0
DateTime Original:	2009:12:27 20:04:48
Exposure Bias:	0 EV
Exposure Mode:	0
Exposure Program:	Program
Exposure Time:	1/60 sec
FNumber:	f/4.5
Flash:	Flash, Auto-Mode, Return light detected
Focal length:	12.7 mm
ISO:	200
Light Source:	Unknown: 0
Make:	Sony
Max Aperture:	f/2.8
Model:	DSC-W210
URL:	http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=319
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Comment 1 to 5 of 5

Page: 1

streetlight98

[May 01, 2011 at 11:32 PM]

I've always wondered why MH and some HPS lamps utilize a brass base, which get stuck in the sockets, versus an aluminum base that mercury vapor lamps have that don't get stuck.

gailgrove

[May 01, 2011 at 11:53 PM]

Well it depends on the manufacture, I own several HPS lamps with aluminium bases (my 1KW one) and MV lamps with brass bases (all of them actually)

streetlight98

[May 02, 2011 at 08:34 PM]

I know Sylvania mercury lamps are aluminum based, but Sylvania's metalarc and HPS lamps are brass. The brass ones get stuck and I don't care for them that much.

gailgrove

[May 02, 2011 at 08:40 PM]

My 1KW Sylvania HPS has an aluminium base, so do all two of my EYE lamps.

streetlight98

[May 02, 2011 at 08:46 PM]

Hmm. It must just be by ramdom. I find the same thing with incandescent lamps. Sometimes I'll find aluminum and brass mixed in a box! 1 of let's say 4 lamps might have a brass base. For indoor use, the brass doesn't weather so it doesn't get stuck, so brass on incandescents doesn't bother me.

Comment 1 to 5 of 5

Page: 1

Gallery of Lights

400 watt Metal Halide