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McGraw-Edison Unidor-250 175W/H39 Finding a Unidor-250 in NOS form is almost like finding a chicken with teeth...this one is a CWA and WILL NOT run penning-start S63 HPS retrofit lamps. Keywords: Lanterns

McGraw-Edison Unidor-250 175W/H39

Finding a Unidor-250 in NOS form is almost like finding a chicken with teeth...this one is a CWA and WILL NOT run penning-start S63 HPS retrofit lamps.

LMI_Unistyle_400-1_0.jpg Unidor-250-1_2.jpg _IMG0260.JPG _IMG0261.JPG _IMG0262.JPG
Lamp/Fixture Information
Manufacturer:McGraw-Edison Company
Model Reference:Unidor-250
Lamp
Lamp Type:Mercury Vapor
Fixture
Fixture Type:Cobra-Head
Ballast Type:H39-22/CWA-HPF
Socket Type:E39 (Mogul)
Photocell Type:Twist-Lock
Electrical
Wattage:175W ~ (205VA)
Voltage:120/240V @60Hz
Current:3.30/1.65A ~
Physical/Production
Factory Location:Milwaukee, WI USA
Fabrication Date:C. 1970
Application/Use:Residential Streets & Security
File information
Filename:Unidor-250-1_2.jpg
Album name:Eric / Roadway Luminaires
Keywords:Lanterns
Filesize:270 KiB
Date added:02 Jun 2026
Dimensions:1396 x 1050 pixels
Displayed:3 times
DateTime Original:2021:11:02 21:40:24
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1311
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