Cooper Lighting 150-1000W Prospecto

• Roll-formed aluminum

housing with stamped
reveal has interior-welded
seams for structural
integrity and is finished 
in premium TGIC 
polyester powder coat 

• Ballast tray is 

hard-mounted to housing
interior for easy access
and cooler operation

• Long-life ballast core and

coil

• Spun and stamped 

aluminum reflector in 
vertical lamp units, or
hydroformed anodized
aluminum reflector in 
horizontal lamp units.
Rotatable optics standard

• Formed aluminum door

for arm-mount fixture has
retaining springs, while
spider-mount unit has a
heavy-duty hinge and 
captive retaining screws

• Flat or convex tempered

glass lens

• U.L. listed for wet 

locations. CSA certified

• Approximate net weight: 

86 lbs. (40 kgs.)

GR
GALLERIA
ROUND

NOTES: 1 Arm not included. See Accessories. 2 Arm length varies based on housing size: 11-1/2" for GRM and 14" for GRL. 3 150W medium-base socket. 175W-1000W

mogul-base. 4 Pulse Start Metal Halide only. 5 Requires reduced envelope ED-28 lamp when used with GRM housing and flat glass vertically lamped optics. 

6 1000W in GRM housing requires reduced envelope BT-37 lamp. 7 Only available in 250-400W Pulse Start Metal Halide and vertical optics. Must specify E1 or E2

voltage. 8 Provides 0-10V DC low voltage, leads used in dimming control. 9 Product also available in non-US voltages and 50Hz for international markets. Consult

factory for availability and ordering information. 10 Multi-Tap ballast is 120/208/240/277V wired 277V. Triple-Tap ballast is 120/277/347V wired 347V. 11 250W only. 

12 Medium housing fixture only. 13 RW optic not available with flat glass. 14 1000W GRL with flat glass requires BT-37 lamp and is not available in AS, RW or 3V

distributions. 15 Other finish colors available, including a full line of RAL color matches. Consult your Cooper Lighting Representative. 16 Add as suffix in the

order shown. 17 House side shield available on 2F, 3F, FT and all vertically lamped distributions when combined with sag glass. 18 Arm mount only, 400W

Maximum. 19 Order separately, replace XX with color suffix. 20 Specifications and dimensions subject to change without notice.

The Galleria Round combines
beauty and versatility to make it
the optimum choice in today's
energy- and design-conscious
environment. An aesthetic reveal
in the roll-formed aluminum
housing carries on the Galleria
family look while a variety of
mounting options and lamp
wattages provide maximum 
flexibility. 

F=Single Fuse (120, 277 or 347V)
FF=Double Fused (208, 240 or 480V)
EM=Quartz Restrike with Delay (Hot Restrike Only)
Q=Quartz Restrike (Hot Restrike Only)
R=NEMA Twistlock Photocontrol Receptacle
HS=House Side Shield

VS=Vandal Shield

L=Lamp Included 

MA1061 =House Side Shield—Medium Housing (Field Installed) 
MA1062 =House Side Shield—Large Housing (Field Installed)
OA/RA1016=Photocontrol–Multi-Tap
OA/RA1027=Photocontrol–480V
OA1201=NEMA Twistlock Photocontrol—347V
MA1025XX=14" Arm for Square Pole. 1.0 EPA
MA1026XX=6" Arm for Square Pole. 0.5 EPA
MA1027XX=14" Arm for Round Pole. 1.0 EPA
MA1028XX=6" Arm for Round Pole. 0.5 EPA
MA1029XX=Wall Mount Bracket with 10" Arm
MA1010XX=Single-Arm Tenon Adapter for 3 1/2" O.D. Tenon
MA1011XX=2 @ 180° Tenon Adapter for 3 1/2" O.D. Tenon
MA1012XX=3 @ 120° Tenon Adapter for 3 1/2" O.D. Tenon
MA1013XX=4 @ 90° Tenon Adapter for 3 1/2" O.D. Tenon
MA1014XX=2 @ 90° Tenon Adapter for 3 1/2" O.D. Tenon
MA1015XX=2 @ 120° Tenon Adapter for 3 1/2" O.D. Tenon
MA1016XX=3 @ 90° Tenon Adapter for 3 1/2" O.D. Tenon
MA1017XX=Single-Arm Tenon Adapter for 2 3/8" O.D. Tenon

MA1018XX=2 @ 180° Tenon Adapter for 2 3/8" O.D. Tenon

MA1019XX=3 @ 120° Tenon Adapter for 2 3/8" O.D. Tenon

MA1045XX=4 @ 90° Tenon Adapter for 2 3/8" O.D. Tenon

MA1048XX=2 @ 90° Tenon Adapter for 2 3/8" O.D. Tenon

MA1049XX=3 @ 90° Tenon Adapter for 2 3/8" O.D. Tenon

GRM 150-1000W

18 1/4"

3 1/2"

19 3/4"

24 1/2"

6" or 14"

16"

150-400W            

[464mm]

[89mm]

[502mm]

[676mm]

[152mm] or [356mm] [406mm]

GRL 1000W

19 3/4"

4 1/2"

25 5/8"

32 15/16"

6" or 14"

19 3/4"

[502mm]

[108mm]

[651mm]

[837mm]

[152mm] or 356mm]

[502mm]

E.P.A. Single Medium Fixture (without arm): 1.7 / Single Large Fixture (without arm): 2.5

Spider Mount Medium: 2.0 / Spider Mount Large: 2.8

A

B

C

D

E

F

D

S A M P L E   N U M B E R :   G R M - A M - 2 5 0 - M H - 1 2 0 - F T- F G - D P - L

Product Family
GRM=Galleria

Round
Medium

GRL=Galleria

Round
Large

Mounting Method
AM=Arm Mount 

AIR=Arm Included 

for Round Pole 

AIS=Arm Included 

for Square Pole 

SM=Spider for 

3" O.D. Tenon

150=150W
175=175W
250=250W
320=320W

350=350W

400=400W

1000=1000W

Lamp Type
MH=Metal 

Halide

MP=Pulse 

Start
Metal
Halide
(CWA)

HPS=High

Pressure
Sodium

MPE=ECON

TM

Electronic
Powered
Pulse Start 
Metal Halide

MPD=ECON

TM

Dimmable
Electronic
Powered
Pulse Start 
Metal Halide

120=120V
208=208V
240=240V
277=277V
480=480V
MT=Multi-Tap 

TT=Triple-Tap 

E1=Electronic

120-277V

E2=Electronic

200-277V

Distribution
Horizontal
1F=Type I 

Formed

2F=Type II 

Formed

3F=Type III 

Formed

FT=Forward Throw
Vertical
AR=Area Round
AS=Area Square
3V=Type III Vertical
RW=Rectangular Wide

(See Below)

Lens Type
FG=Flat Glass 

SG=Sag Glass

(add as suffix)
BZ=Bronze 
AP=Grey
BK=Black
WH=White
DP=Dark Platinum
GM=Graphite Metallic

In all flat glass configurations.