Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
Incandescent Downlights
12” LA
Square Lens
Wet Location, Horizontal Lamp
A21 or A23
FEAT URES ORDERING INFORMATION NOTES
OPTICAL SYSTEM
• Diffused anodized aluminum reflector.
• Available with tempered prismatic lens (T73), flat Fresnel lens (FFL), flat
Holophane lens (FHL) or, drop Holophane lens (DHL).
DOOR
• Die-cast aluminum regressed white door frame available in flush white, white
stepped baffle, or black stepped baffle.
• Self-aligning torsion support springs.
MECHANICAL SYSTEM
• Die-formed steel upper housing with white polyester powder paint and formed
steel lower housing with matte black finish.
• Expandable mounting bars provide horizontal and vertical adjustment.
• Galvanized steel junction box with hinged access covers and spring latch. Three
combination 1/2”-3/4” and one 1/2” knockout for straight-through conduit runs.
Capacity: 8 (4 in, 4 out) No. 12 AWG conductors rated for 90°C.
• Patented adjustable aperture allows 1/4” adjustments in all directions and up
to 5° of rotation, allowing post-installation adjustments to ensure trim-to-trim
alignment.
EXAMPLE: LA 12FW T73
ELECTRICAL SYSTEM
• Medium-base porcelain socket with nickelplated screw shell.
• Thermally-activated insulation detector.
LISTING
• Fixtures are UL Listed for thru-branch wiring, non-IC recessed mounting and wet
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
Series Door frame Lens type Options
1
LA
12FW Flush white door
12SB Stepped black baffle
12SW Stepped white baffle
T73 Tempered prismatic lens
FHL Flat Holophane lens
DHL Drop Holophane lens
FFL Flat Fresnel lens
SDT 227V stepdown transformer (277V to 120V). Adds 4” to width of fixture
SDT347 347V stepdown transformer (347V to 120V; 75Wmax). adds 4” to width of fixture
TRDA Tamper-resistant door assembly
RRL RELOC
®
-ready luminaire. Provides compatibility with Lithonia RELOC system. Access
above ceiling required.
SF Single fuse
GSKT Foam gasketing (shipped uninstalled)
ACCESSORIES order as separate catalog numbers (shipped separately)
BH24 24” steel bar hangers (2) for T-bar mounting.
LSMC
Set of 4 T-bar mounting clips for use with bar hangers supplied with unit.(Not for use with BH24).
ORDERING NOTES
1. Maximum wattage: is 200W A21-IF or A23-IF lamp.
LA-12-SQUARE-LENS
PAGE 1 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2006-2014 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 04/08/14. Specifications subject to change without notice.
12” LA
(43.7)
Square Lens
Wet Location, Horizontal Lamp, A21 or A23
DIMENSIONAL DATA
All dimensions are inches (centimeters) unless otherwise noted.
7-3/4 (19.7)
17-3/16
Aperture:10-7/8 (27.6)
Ceiling opening: 12-1/4 (31.3)
Overlap trim: 12-5/8 (32.1)
12-5/8 (32.1)
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2006-2014 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 04/08/14. Specifications subject to change without notice.
LA-12-SQUARE-LENS
PAGE 2 OF 3
12” LA
90° 6
°
'1
'1
ρ f20%
10 23 20 22 19 22 19
0°
1200
1500
90° 2
ρ f20%
10 22 19 22 19 21 19
°
'3
'2
1200
1500
90° 41
ρ f20%
10 26 22 25 22 25 22
%1
°
'5
'2
'0
1200
1500
Square Lens
Wet Location, Horizontal Lamp, A21 or A23
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
LA 12FW T73
300
600
900
LA 12FW FHL
300
600
900
0°
From 0° cp. Lumens
90°
45°
From 0° cp. Lumens
90°
45°
200W/A23 LAMP, 1.1 S/MH, 3940 RATED LUMENS, TEST NO. 2187040903
Zone Lumens %lamp
0° 1069
5° 1066 102
15° 1009 286
25° 886 410
35° 707 444
45° 428 332
55° 225 200
65° 112 111
75° 63 67
85° 24 27
200W/A23 LAMP, 1.1 S/MH, 3940 RATED LUMENS, TEST NO. 2187040906
0° 1128
5° 1140 109
15° 1108 314
25° 916 424
35° 672 422
45° 322 249
55° 137 123
65° 67 66
75° 34 36
85° 10 11
0°-30° 798 20.2
0°-40° 1242 31.5
0°-60° 1775 45.1
0°-90° 1979 50.2
90°-180°0 0.0
0°-180° 1979 50.2*
* Fixture efficiency
Zone Lumens %lamp
0–30° 847 21.5
0–40° 1269 32.2
0–60° 1641 41.6
0–90° 1754 44.5
90–180° 0 0.0
0–180° 1754 44.5*
* Fixture efficiency
ρ c 80% 50%30%
ρw50% 30% 50% 30% 50% 30%
1535150494847
2484545434341
3433941383937
4393537343633
5353134303330
6322831273027
7292528252825
8272326232522
9252124212421
ρ c 80% 50%30%
ρw50% 30% 50% 30% 50% 30%
1484645444342
2434141394038
3393637353634
4363334323331
5333032293128
6302729262826
7282527242624
8262325222422
9242123212320
50% 10%
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
8' 35.3 6.3'17.712.3' 3.5
10' 19.0 8.6' 8.0 16.7
12' 11.8 10.8'5.9 21.2
14' 8.1 13.1' 4.1 25.6' 0.8
16' 5.9 15.4' 3.0 30.1' 0.6
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
8' 37.3 6.1' 18.7 11.0
10' 20.1 8.3' 10.1 15.0
12' 12.5 10.5' 6.319.1' 1.3
14' 8.5 12.7' 4.3 23.1' 0.9
16' 6.2 14.9' 3.1 27.1' 0.6
beam angle 59.4° beam angle 96.2
50% 10%
beam angle 57.5° beam angle 90.2
.9
.2
.7
.0
LA 12FW DHL
90°
From 0° cp. Lumens
300
600
900
45°
0°
PHOTOMETRY NOTES
• Tested to current IES and NEMA standards under stabilized laboratory conditions.
• 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.
LA-12-SQUARE-LENS
PAGE 3 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2006-2014 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 04/08/14. Specifications subject to change without notice.
200W/A23 LAMP, 0.8 S/MH, 3940 RATED LUMENS, TEST NO. 2188063001
0° 1505
5° 1482 139
15° 1207 341
25° 862 400
35° 575 364
45° 349 275
55° 207 190
65° 133 134
75° 90 96
85° 57 62
Zone Lumens %lamp
0–30° 880 22.4
0–40° 1244 31.6
0–60° 1709 43.4
0–90° 2001 50.8
90–180° 0 0.0
0–180° 2001 50.8*
* Fixture efficiency
ρ c 80% 50%30%
ρw50% 30%50% 30%50% 30%
1545251504948
2494746444543
3454243404139
4413839373836
5383436333533
6353134313330
7322931283028
8302629262826
9282427242724
50
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
8' 49.8 4.5'24.9 10.3
10' 26.8 6.1'13.4 14.1
12' 16.7 7.8' 8.3 17.8' 1.7
14' 11.4 9.4' 5.7 21.6' 1.1
16'8.3 11.0' 4.1 25.3
beam angle 44.5° beam angle 86.3
0%
.0
.7
.8
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