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M250A1 HPS 150
GE M250A1 150w HPS retrofitted. Was a merc many years ago. NOT a ComEd light.
Keywords: American_Streetlights

M250A1 HPS 150

GE M250A1 150w HPS retrofitted. Was a merc many years ago. NOT a ComEd light.

IMG_0425_copy.JPG IMG_0421_copy.JPG IMG_0419_copy.JPG IMG_0380_copy.JPG IMG_0375_copy.JPG
File information
Filename:IMG_0419_copy.JPG
Album name:gramirez2012 / NW Suburban Chicago
Keywords:American_Streetlights
Company and Date Manufactured:GE
Model Number:M250A1
Wattage:150
Lamp Type:HPS
Filesize:913 KiB
Date added:Oct 28, 2011
Dimensions:2000 x 2667 pixels
Displayed:60 times
Color Space:sRGB
DateTime Original:2011:10:28 12:48:06
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/2123 sec
FNumber:f/2.4
Flash:No Flash
Focal length:4.28 mm
ISO:64
Make:Apple
Model:iPhone 4S
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=9129
Favorites:Add to Favorites

Comment 1 to 6 of 6
Page: 1

Mercuryvapor123   [Oct 28, 2011 at 07:40 PM]
Those are some realy nice looking nieborhood shots I like how they light them with cobraheads and not postops.
gramirez2012   [Oct 28, 2011 at 07:43 PM]
Thanks! I believe these lights were put in when the neighborhood was developed in the mid-late 70's. They all used to be mercury vapor, but were retrofitted with HPS about 10 years ago. The steel poles are newer, they all used to be concrete, but they have been slowly replacing them.
GullWhiz   [Oct 28, 2011 at 08:26 PM]
retrofitted by a HPS lamp for a MV fixture or a new powerdoor or did they change the ballast?
gramirez2012   [Oct 28, 2011 at 08:29 PM]
The doors have HPS labels on them, so either a new powrdoor or ballast swap and label change. These were retrofitted about 10 years ago, did GE even make powrdoors for these old fixtures that recently?
GullWhiz   [Oct 28, 2011 at 08:32 PM]
Then the "Retrofitted" is kinda a wrong term....."converted is more of the correct term"

Retrofitted is a better term for those that are STILL MV that has HPS lamps MADE for MV ballasts...
gramirez2012   [Oct 28, 2011 at 08:32 PM]
Oh ok.

Comment 1 to 6 of 6
Page: 1