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Home > User galleries > chapman84 > Duquesne Light street lights (removed from service)
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General Electric M-250R1 175 watt mercury vapor

IMG_8358a.JPG 000_0002.jpg general_electric_m-250r1~0.jpg westinghouse_ov-25.jpg cooper_lighting_ovz_175_watt_mv.jpg
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Album name:chapman84 / Duquesne Light street lights (removed from service)
Filesize:224 KiB
Date added:Jul 09, 2016
Dimensions:2304 x 1728 pixels
Displayed:90 times
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Comment 1 to 8 of 8
Page: 1

vaporeyes   [Jul 10, 2016 at 11:04 PM]
Current photo? Always nice to see MV still in use, particularly in a classic fixture like this.

chapman84   [Jul 11, 2016 at 12:39 AM]
I took this picture in January.

chapman84   [Jul 11, 2016 at 12:44 AM]
I like older mercury vapor street lights too, especially the GE M-250R.

chapman84   [May 02, 2017 at 12:39 AM]
This light was replaced with a 70 watt high pressure sodium street light.

ZarlogH46   [May 02, 2017 at 01:09 AM]
70w HPS is going to be nowhere near as effective as a new 175w coated mercury vapor. At least they didn't shame it with LEDisease.

streetlight98   [May 02, 2017 at 01:23 AM]
Agreed. 70W HPS would be OK for 100W MV but not for 175W MV lol. One utility in RI used 70W HPS to replace 100W MV but the other (and larger) utility used 50W HPS. The 50W HPS is pretty dim but 70W HPS is about right. A brand new 100W /DX MV lamp appears slightly brighter than 70W HPS but the lamps quickly start to dim out so after a year they're about the same. A clear lamp probably starts off the same as 70w HPS. Occasionally I see 100W MV replaced with 100W HPS here. They do that so they can still bill the city for the 100 watts lol.

chapman84   [May 02, 2017 at 01:41 AM]
Duquesne Light used to maintain their mercury vapor street lights until 8 years ago. Now if a mercury vapor fixture needs a lamp or photocell replacement, they'll just replace it with a high pressure sodium one.

traffic light1   [Jul 13, 2019 at 03:58 PM]
traffic light1
So nice

Comment 1 to 8 of 8
Page: 1