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GE M-250A with missing door showing the series ballast its hard to see because this pic was taken at dusk, but if you look carefully you can see the series ballast mounted in the upper half of the fixture rather than on the door. this is in santa barbara, california (man i LOVE that city!) and many of the city owned street lights still operate on series circuits. Keywords: American_Streetlights

GE M-250A with missing door showing the series ballast

its hard to see because this pic was taken at dusk, but if you look carefully you can see the series ballast mounted in the upper half of the fixture rather than on the door. this is in santa barbara, california (man i LOVE that city!) and many of the city owned street lights still operate on series circuits.

2011-05-27_20-29-02_212.jpg 033111211325.jpg image~50.jpg image~9.jpeg calectric1.jpg
File information
Filename:image~50.jpg
Album name:Silverliner14B / southern california edison street lights (includes city owned lts)
Keywords:American_Streetlights
Company and Date Manufactured:GE, installed early 80s
Model Number:M-250A
Wattage:250w
Lamp Type:HPS
Filesize:137 KiB
Date added:Jul 21, 2013
Dimensions:2000 x 1500 pixels
Displayed:227 times
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=15938
Favorites:Add to Favorites

Comment 1 to 12 of 12
Page: 1

streetlight98   [Jul 21, 2013 at 02:49 AM]
I've always wondered why GE always made their series cobraheads with the powr/door fixtures and mounted the ballast in the top. Why not make the single door fixture the series model instead since the ballast is already in the top?
joe_347V   [Jul 21, 2013 at 03:11 AM]
Hmm, were the single door GEs offered in series?
streetlight98   [Jul 21, 2013 at 04:19 PM]
I don't think so... The Original M-400 and M-250R I think might have been but after the powr/door series came out in the mid-60s i think they sold their series lights as power doors with the ballast in the top housing.
Silverliner14B   [Jul 21, 2013 at 04:37 PM]
i have seen 1970s M-250R1s, and later M-400R2s and R3s on series circuits.
streetlight98   [Jul 21, 2013 at 04:57 PM]
Hmm so they offered the M-250A and M-250R1 in series? odd. Yeah now that you mention it i remember the MV M-400 series light. GE only lists the M-250A2 in series though.
Hanging Light   [Jul 21, 2013 at 08:06 PM]
Is the ignitor still there?
Silverliner14B   [Jul 22, 2013 at 05:22 AM]
yes it must still be there because it lights at night.
BULB FREAK   [Jul 22, 2013 at 10:24 AM]
one thing that gets me with HPS sires lights is watt happens if the lamp starts to cycel? dose the hole string get knocked out?
streetlight98   [Jul 22, 2013 at 07:27 PM]
Maybe they have to use non-cycling lamps or something. Do HID series lights have shunts too like incandescent ones?
joe_347V   [Jul 22, 2013 at 11:34 PM]
I believe all HID series lights use a isolation ballast so when the lamp does or cycles, the current still flows to the other lists through the ballast.
streetlight98   [Jul 23, 2013 at 12:33 AM]
ahh i see.
rlshieldjr   [Aug 19, 2013 at 06:48 PM]
I see a loose wire with a nut on the end.

Comment 1 to 12 of 12
Page: 1
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