Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
Compact Fluorescent Downlights
11” LAF
Square Lens
Wet Location, Horizontal Lamp
Double Twin-Tube or Triple-Tube
FEAT URES ORDERING INFORMATION NOTES
OPTICAL SYSTEM
• Diffused anodized aluminum reflector.
• Available with tempered prismatic lens (T73), flat Fresnel lens (FFL), or drop
Holophane lens (DHL).
MECHANICAL SYSTEM
• Die-cast aluminum, gasketed door frame available in flush white or regressed
stepped baffle.
• Self-aligning butterfly door support springs.
• 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. Two
combination 1/2”- 3/4” knockouts and two 1/2” knockouts for straightthrough
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: LAF 2/13DTT 11RW T73 MVOLT
ELECTRICAL SYSTEM
• Horizontally-mounted, positive latch thermoplastic sockets.
• Class P, thermally-protected, high power factor ballasts mounted to the
LISTING
• Fixtures are UL Listed for thru-branch wiring, Non-IC recessed mounting and
WARRANTY
• 1-year limited warranty. Complete warranty terms located at:
Series Wattage/Lamp Door frame Lens type Voltage Ballast
LAF
1
1/18DTT
1/26DTT
1/26TRT
1/32TRT
1/42TRT
11RW Regressed
white splay
T73 Tempered
prismatic
lens
DOL Drop opal
lens
MVOLT
120
277
347
1
ECOS
ADEZ
2/13DTT
2/18DTT
2/26DTT
2/26TRT
2/32TRT
2/42TRT
junction box.
wet locations. Listed and labeled to comply with Canadian Standards.
www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx
2
3
EcoSystem
electronic dimming
ballast. Minimum
dimming level 5%.
4
Advance Mark 10
electronic dimming
ballast. Minimum
dimming level 5%
Options
DS Dual switching
5
ELR
Emergency battery pack.Remote test switch provided
4
GMF
Single, slow-blow fuse
4
GLR
®
Single, fast-blow fuse
WLP With 3500 K lamp (shipped separately)
TRDA Tamper-resistant door assembly
RRL RELOC
®
-ready luminaire. Provides compatibility
with Lithonia RELOC system. Access above ceiling
required.
6
BDP
Ballast disconnect plug
7
NEPP
Interface for Sensor Switch® nLight® network with
integral power supply. Refer to TN-623-01.
ACCESSORIES order as separate catalog numbers (shipped separately)
NSP5 D ER KIT
Sensor Switch® nLight® secondary relay and dimming pack device used to switch and dim luminaires powered via an emergency circuit. Refer to NSP5 D ER KIT.
ORDERING NOTES
1. Multi-volt electronic ballast capable of operating on any voltage from 120V through
277V, 50 or 60 Hz.
2. For additional ballast types, refer to TECH-250.
3. Not available 13DTT.
4. Available in 120V or 277V only.
LAF-11-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. 04/10/14. Specifications subject to change without notice.
5. For dimensional changes, refer to TECH-140.
6. Meets codes that require in-fixture disconnect.
7. One 5A relay with one 0-10 VDC dimming output, shipped installed.
Requires additional nLight bus power supply.
8. For Emergency generator/inverter applications order non-nLight-enabled
fixture and NSP5 D ER KIT as an accessory. Refer to NSP5 D ER KIT.
11” LAF
(33.7)
Square Lens
Wet Location, Horizontal Lamp, Double Twin-Tube or Triple-Tube
DIMENSIONAL DATA
All dimensions are inches (centimeters) unless otherwise noted.
13-1/4
24 (61.0)
Aperture:10-1/8 (27.0)
Ceiling opening:11-1/4 (28.6)
Overlap trim:11-5/8 (29.5)
6 (15.2)
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. 04/10/14. Specifications subject to change without notice.
LAF-11-SQUARE-LENS
PAGE 2 OF 3
11” LAF
90° 0
%1
102.4°
ρ f20%
10 19 15 18 15 18 15
0°
140
280
420
560
700
Square Lens
Wet Location, Horizontal Lamp, Double Twin-Tube or Triple-Tube
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
LAF 2/26DTT 11RW T73
90°
From 0° cp. Lumens
15° 637 181
25° 593 274
35° 508 318
45°
45° 374 287
55° 210 193
65° 111 113
75° 55 60
85° 11 16
0° 662
5° 657 63
(2) 26W F26DTT/27K LAMP, 1.3 S/MH, 3600 RATEDLUMENS, TEST NO. 2192100502
Zone Lumens %lamp
0°-30° 515 14.33
0°-40° 833 23.15
0°-60° 1312 36.46
0°-90° 1500 41.16
90°-180°0 0.0
0°-180° 1500 41.16*
* Fixture efficiency
ρ c 80% 50%30%
ρw 50% 30%50% 30% 50% 30%
1454342414040
2403838363735
3363335323332
4333031293128
5302729262825
6272426232523
7252124212320
8221922192118
9201720171917
Mount at beam Beam beam Beam beam
height center diameter edgediameter edge
8' 21.9 6.8' 10.9 13.7' 2.2
10' 11.8 9.3' 5.9 18.7' 1.2
12' 7.3 11.8' 3.7 23.6' 0.7
14' 5.0 14.3' 2.5 28.6' 0.5
16' 3.6 15.8' 1.8 33.6' 0.4
50
Initial fc fc at fc at
beam angle 63.6° beam angle
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.
LAF-11-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. 04/10/14. Specifications subject to change without notice.
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