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M-400A 
Keywords: American_Streetlights

M-400A

010~1.JPG 023~0.JPG 024~0.JPG 2011-08-01_12-58-29_413.jpg 001~14.JPG
File information
Filename:024~0.JPG
Album name:Antstar85 / New England Lights
Keywords:American_Streetlights
Model Number:M-400A
Wattage:250
Lamp Type:HPS
Filesize:809 KiB
Date added:Aug 02, 2011
Dimensions:2592 x 1936 pixels
Displayed:121 times
Color Space:sRGB
DateTime Original:2011:07:28 18:59:56
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/838 sec
FNumber:f/2.8
Flash:No Flash
Focal length:3.85 mm
ISO:80
Make:Apple
Model:iPhone 4
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=7656
Favorites:Add to Favorites

Comment 1 to 10 of 10
Page: 1

GullWhiz   [Aug 02, 2011 at 04:12 AM]
Sure about that? It looks more like a split door (a version with 2 doors and ballast on upper casing instead of the door) You can tell by the type of latch used on the ballast side door...but this one is a bit harder to see..but it looks like a split door GE M-400 instead of a powerdoor version.

The GE M-400R2 replaced the Splitdoor in 1985...The split door replaced the original GE M-400, they just decided to use the same housing as using the power door versions.
Antstar85   [Aug 02, 2011 at 10:51 AM]
Is there a way to tell which is who from the ground. This fixture has the vents on the bottom of the door and I've seen a few fixtures around with the back door open and the ballast mounted to the door. Any help would be appreciated!
GullWhiz   [Aug 02, 2011 at 01:18 PM]
Then if it has vents...then its indeed a powerdoor! But the newest power door replacement (which fits on GE M-400A1 and GE M-400A2) oes NOT have vents though! The easiest way to tell from the ground is the little latch that keeps the door closed....the Powerdoor ones has a much bigger latch since ballast is on the door and heavy so it uses a bigger spring latch to keep it shut...its a cast alunimum piece of latch......but the split door only has a metal strip stainless clip which is much smaller...that keeps the door close....
Antstar85   [Aug 02, 2011 at 01:26 PM]
Awsome!!!!! Thanks for the info. I'll defentely check that out later when I get home. I have the same type of fixture in front of my house. I have already learned some new stuff in the day I've been on!!!
streetlight98   [Aug 02, 2011 at 05:02 PM]
Well, my split door has vents. Confused It's not the most acurate way to tell.
GullWhiz   [Aug 02, 2011 at 05:03 PM]
The best one would be the latch style of the ballast door.
streetlight98   [Aug 02, 2011 at 05:13 PM]
Only if it's HPS. The 70's MV ones didn't come with a latch, only a screw.
Antstar85   [Feb 25, 2012 at 04:45 PM]
Well, This light has now been replaced to a LEOTEK GC1-80c.
streetlight98   [Feb 25, 2012 at 04:49 PM]
Agggghh! Mad Let's see how long these LEDs live.... Confused
Antstar85   [Feb 25, 2012 at 04:50 PM]
I bet by summer, Holyoke wil be 100% LED.

Comment 1 to 10 of 10
Page: 1