
NEO-RAY
PERIMETER
™
12-1/8" - 12-3/8"
[308mm - 314mm]
11-1/4" [286mm]
HOUSING WIDTH
9" [229mm]
FIXTURE OPENING
TIE WIRE 
(NOT BY NEORAY) 
(4 TWISTS MINIMUM)
9" 
[229mm] 
OVERALL
HEIGHT
Construction
20-gauge steel housing. 
Electrical
120, 277, 347 or Universal Voltage electronic ballast. 
Fixtures and electrical components certified to UL 
and CUL standards.  
Finish
Durable, low gloss, white, powder coated acrylic 
finish.
Mounting
Recessed.
RUNS AND PATTERNS
ORDERING INFORMATION:
Sample number: 79OS-1T8-4-1EB-SI
Series
79OS
Number of Lamps (not included) 
1=1 Lamp 
Lamp Type
T8 T5
Run Length
Overall Nominal Run Length__ft. (Any combination of 8’, 6’, 4’ and 3’ 
sections)
1
Voltage 
1=120V 2=277V 3=347V U=Universal
Ballast
EB=Electronic Ballast (Standard) DB=Dimming Ballast
Switching
SI=Single Switching
Emergency
EM=Emergency Pack (Consult Factory)
Fusing
GLR GMF
1 Due to various constraints, some options may not be combined with others. 
11-3/8"
79-OS
INDIRECT
• Direct wall wash light 
distribution.
• T5 and T8 lamping.
• Softly graduated wall 
illumination without lamp 
socket shadows.
•
Factory prepared inside and 
outside mitered corners, 
create a refined finished 
detail at the ceiling line. 
• Lamps shielded from all 
viewing angles.
• Die formed steel housing.
• Runs are field adjustable.
• Illuminated wall continues 
above the ceiling line to 
create floating ceiling effect.
• 90 degree mitered corners.
• Contractor friendly 
installation.
12-1/8"
PATTERNS ARE PROVIDED WITH 
CORNER SECTIONS. 
FIELD DIMENSIONS ARE REQUIRED. 
FILLER SECTIONS ARE CUT TO LENGTH IN THE FIELD.
NOTES: For complete product data, refer to the Neo-Ray Specification Binder. Specifications and dimensions subject to change without notice. Products may be
modified for use in international markets. Please contact your Cooper Lighting Sales Representative for availability and ordering information.
90˚ Inside Corner
90˚ Inside Corner
2"
8" Filler Section
COOPER LIGHTING
767