Page 1
Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
HID Downlights
8” AH
Open Reflector
Metal Halide Lamp
FEAT URES ORDERING INFORMATION
OPTICAL SYSTEM
• Self-flanged semi-specular or matte-diffuse reflector. Patented Bounding
Ray™ Optical Principle design (U.S. Patent No. 8,500,050). Minimum flange
matches reflector finish.
• Baffle/cone – Semi-specular clear upper reflector. Microgroove baffle with white
painted flange or specular black cone with flange that matches cone finish.
MECHANICAL SYSTEM
• 16-gauge galvanized steel construction; maximum 7/8” ceiling thickness.
• Telescopic mounting bars maximum of 32” and minimum of 15”, preinstalled,
4” vertical adjustment.
• Toolless post-installation adjustments.
• Junction box capacity: 8 (4 in, 4 out) 12AWG rated for 90°C.
ELECTRICAL SYSTEM
• Die-cast aluminum lampholder housing.
• Medium-base porcelain socket with nickel-plated screw shell. Extended
porcelain socket for “open fixture” rated lamps.
EXAMPLE: AH 150MHC 8AR T73 120 HEB
Series Wattage/Lamp
AH
Metal halide
50M
70M
100M
2
150M
Color-corrected metal halide
1
Aperture/Trim color Distribution Finish Lens type
3
8AR Clear
8PR Pewter
8WTR Wheat
4
8MB
Black baffle
4
8WB
White baffle
(blank) Wide
N
50MHC
70MHC
100MHC
2
150MHC
High pressure sodium
150S
• Prewired, encased-and-potted, 120/277V (pulse-start) or 120/347V (probestart) ballast tray module. Module can be attached before or after mounting of
mounting/plaster frame.
• Metal halide: 150M and 150MHC are only available with HEB electronic ballast.
• Thermally activated insulation detector.
LISTING
• Fixtures are UL Listed for thru-branch wiring, non-IC recessed mounting and
damp locations. Listed and labeled to comply with Canadian standards.
WARRANTY
• 1-year limited warranty. Complete warranty terms located at
www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx
5
Narrow
(blank) Semi-specular
LD Matte-diffuse
(blank) No lens
CGL Clear glass lens
T73 Tempered prismatic lens
Voltage
120
277
347
Options
6
RRL
RELOC®-ready luminaire. Provides compatibility with Lithonia RELOC system. Access
above ceiling required.
7
QRS
Quartz restrike system
7
QRSTD
Quartz restrike system with time delay
8
EC
Emergency circuit
TRBL Black painted flange
GSKT Foam gasketing
WLP With lamp (shipped separately)
CP Chicago plenum
9
HEB
Electronic ballast
SF Single fuse
TRW White painted flange
ACCESSORIES order as separate catalog numbers (shipped separately)
SCA8 Sloped ceiling adapter. Degree of slope must be specified (10D, 15D, 20D, 25D, 30D). Ex: SCA8 10D
CTA4-8YK Ceiling thickness adapter (extends mounting frame to accommodate ceiling thickness up to 3-1/4” narrow distribution and 2-1/4 standard)
AH-8-OPEN
PAGE 1 OF 1
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 07/01/13. Specifications subject to change without notice.
Page 2
8” AH
Overlap trim:9-1/4 (23.5)
(23.3)
(45.1)
20-1/4 (51.4)
Open Reflector
Metal Halide Lamp
DIMENSIONAL DATA ELECTRICALO NOTES
All dimensions are inches (centimeters) unless otherwise noted.
17-3/4
Aperture: 7-7/8 (20.1)
Ceiling opening: 8-7/8 (22.5)
Height information
Distribution Height
AH 8AR 9-3/16 (23.3)
AH 8ARN 10-1/8 (25.6)
9-3/16
DIMENSIONAL NOTES
• Magnetic Ballast Dimensions Shown. HEB Dimensions: L 16 (40.6) x W 15-13/16 (40.2)
ENERGY
(Calculated in accordance eith NEMA standard LE-5A)
Annual*
LER.DOL
59
54
*
Comparative yearly lighting energy cost per 1000 lumens
Cost
$4.05
$4.44
Lamps
(1) 100M
(1) 100M
Energy
Lamp
Lumens
8700
1200
Ballast
Factor
ORDERING NOTES
1. Recommended for use with coated lamps.
2. California Title 20 compliant. Only available with HEB ballast.
3. Ceramic arc tube consistent-color lamp.
4. Not available with finishes.
5. Required for use with enclosed rated lamps.
1.00
1.00
Input
Watts
110
169
6. For compatible RELOC systems, refer to TECH-110.
7. Uses maximum 100W DC-base quartz lamp.
8. DC socket with leads for connection to external emergency power source;
maximum 100W lamp.
9. 120V or 277V only. MHC only.
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 07/01/13. Specifications subject to change without notice.
AH-8-OPEN
PAGE 2 OF 3
Page 3
8” AH
90° 00
ρ f 20%
10 39 35 43 35 38 35
75.0°
1620
3240
8100
ρf 20%
10 40 35 40 35 39 35
%1
beam angle 92.4°
1800
2700
3600
4500
90° 00
ρ f 20%
10 38 35 38 35 38 34
78.0°
3600
Open Reflector
Metal Halide Lamp
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
AH 100M 8AR
90
4860
6480
o
0
AH 100MHC 8AR
90
900
o
0
o
From 0° cp. Lumens
15° 5067 1436
25° 3524 1631
o
45
35° 2042 1283
45° 528 409
55° 15 13
65° 00
75° 00
85° 00
o
From 0° cp. Lumens
15° 4224 1200
25° 4108 1866
o
45
35° 2885 1768
45° 1291 1012
55° 278 285
65° 812
75° 12
85° 00
90° 00
(1) MP100/C/U/MED LAMP, 7900 RATED LUMENS, 1.2 S/MH, TEST NO. LTL7600
Zone Lumens %lamp
0° 8113 0
5° 7262 693
(1) MPC100/C/U/MED LAMP, 8700 RATED LUMENS, 1.3 S/MH, TEST NO. LTL7958
0° 3829 0
5° 3920 379
0°-30° 3761 43.2
0°-40° 5043 58.0
0°-60° 5466 62.8
0°-90° 5466 62.8
90°-180°0 0.0
0°-180° 5466 62.8*
*Efficiency
Zone Lumens %lamp
0°-30° 3446 39.6
0°-40° 5214 59.9
0°-60° 6511 74.8
0°-90° 6525 75.0
90°-180°0 0.0
0°-180° 6525 75.0*
*Efficiency
ρ c 80% 70%50%
ρw50% 30%50% 30%50% 30%
1696866646362
2646263595958
3605760555654
4565358515350
5534955485047
6494652454744
7464350424442
8444047394239
9413745374037
ρc 80% 70% 50%
ρw 50% 30%50% 30%50% 30%
1828081797876
2757274717269
3696568646663
4645963586157
5595458535652
6544954495248
7504550454944
8464146414541
9433843384238
50% 10%
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
8' 268.2 3.5' 134.1 8.4'26.8
10'144.2 4.7' 72.1 11.5' 14.4
12' 89.9 6.0' 44.9 14.6' 9.0
14' 61.3 7.3' 30.7 17.7' 6.1
16' 44.5 8.5' 22.3 20.7' 4.5
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
8' 126.6 7.1' 63.3 11.5' 12.7
10' 68.1 9.7' 34.0 15.6' 6.8
12' 42.4 12.2' 21.2 19.8'4.2
14' 29.0 14.8' 14.5 24.0'2.9
16' 21.0 17.4' 10.5 28.1'2.1
beam angle 35.1° beam angle
50
beam angle 65.6°
0%
AH 100MHC 8MB
90
1800
5400
7200
9000
o
0
o
From 0° cp. Lumens
o
45
(1) MPC100/C/U/MED LAMP, 8700 RATED LUMENS, 1.2 S/MH, TEST NO. LTL7836
0° 8922 0
5° 8708 814
15° 7329 2028
25° 4958 2263
35° 2702 1680
45° 665 570
55° 34 36
65° 56
75° 00
85° 00
Zone Lumens%lamp
0°-30° 5105 42.5
0°-40° 6785 56.5
0°-60° 7391 61.6
0°-90° 7396 61.6
90°-180°0 0.0
0°-180° 7396 61.6*
*Efficiency
ρ c 80% 70%50%
ρw50% 30%50% 30% 50%30%
1686767666463
2646162606159
3595658565754
4555255515351
5524851485047
6494548454744
7464245424441
8433943394239
9413740374036
50% 10%
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edgediameter edge
8' 294.94.5'147.5 8.9' 29.5
10'158.6 6.1' 79.3 12.1' 15.9
12' 98.9 7.7' 49.4 15.4' 9.9
14' 67.5 9.4' 33.7 18.6' 6.7
16'49.011.0' 24.5 21.8' 4.9
beam angle 44.4° beam angle
PHOTOMETRY NOTES
• Tested to current IES and NEMA standards under stabilized laboratory condition.
• Actual performance may differ as a result of end-user environment and application.
• Consult factory or IES file for microgroove baffle, black cone or other photometric reports.
AH-8-OPEN
PAGE 3 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 07/01/13. Specifications subject to change without notice.
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