Page 1
Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
International Compact Fluorescent Downlights
LGFI
20.3cm (8”) Round Lens
Wet Location
Horizontal DTT or TRT Lamp
FEAT URES ORDERING INFORMATION NOTES
OPTICAL SYSTEM
• Aluminum upper reflector coated with highly reflective white paint provides high
efficiency and an evenly illuminated aperture appearance.
• Available with tempered prismatic lens (T73), flat fresnel lens (FFL) or flat opal
lens (FOL).
• Regressed white door (RW) or stepped black baffle (SB) are available with white
painted flange provided.
• Door is retained by self-aligning, torsion support springs, preventing gaps
between door and ceiling.
MECHANICAL SYSTEM
• Pre-wired galvanized steel junction box mounted to reflector is provided with
removable access cover. No. 12 AWG conductors rated for 90°C.
• Three (3) swinggate brackets allow for installation from below the ceiling.
Suitable for ceiling thickness ranging from 1.59cm (5/8”) to 2.54cm (1”).
ELECTRICAL SYSTEM
• Galvanized steel lampholder housing.
• Horizontally-mounted, four-pin, positive-latch, thermoplastic socket.
EXAMPLE: LGFI 2/26TRT 8RW T73 220
• Thermally protected, high power factor electronic ballast (50/60Hz) mounted to
the junction box.
• Eurostyle terminal block included for power supply and ground connections
required for CE.
LISTING
• MVOLT, 120V and 277V fixtures are UL Listed, non-IC recessed mounting and
wet locations. 220V and 240V fixtures are CE certified and rated IP44.
WARRANTY
• 1-year limited warranty. Complete warranty terms located at:
www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx
Series Wattage/Lamp Aperture/Trim color Lens type Voltage Ballast Options
1,3
LGFI 1/13DTT 2/13DTT
1/18DTT 2/18DTT
1/26DTT 2/26DTT
1/13TRT 2/13TRT
1/18TRT 2/18TRT
1/26TRT 2/26TRT
1/32TRT 2/32TRT
1/42TRT 2/42TRT
8RW Regressed
white door
8SB Stepped
black baffle
8RA Regressed
anodized
T73 Tempered pris-
matic lens
FFL Flat fresnel lens
FOL Flat opal lens
PPC Prismatic polycar-
bonate lens
MVOLT
120
220
240
277
(blank) Electronic ballast
3
ECOS Lutron EcoSystem® electronic
2
2
3
dimming ballast. Minimum
dimming level 5%.
4
ADEZ
Advance Mark 10® electronic
dimming ballast. Minimum
dimming level 5%
4
ADZT
Advance Mark 7® electronic
0-10V DC dimming ballast.
Minimum dimming level 3%
5
VDB
Vossloh 0-10V dimming ballast
TRDA Tamper-resistant door
assembly
WLP With 3500 K lamp
(shipped separately)
GSKT Foam gasketing, ships
uninstalled
ORDERING NOTES
1. Multi-volt electronic ballast capable of operating on any line voltage from
120V through 277V, 50 or 60 Hz.
2. Available with CE listing only. 220-240V, 50/ 60 Hz.
3. Available with UL listing only. 120-277V, 50/60Hz.
4. Available with 120V or 277V only.
5. Available with 220V or 240V only.
LGFI-8-ROUND-LENS
PAGE 1 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2010-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/29/13. Specifications subject to change without notice.
Page 2
LGFI
Overlap Trim: 23.5 (9-1/4 )
UL Listed
CE Certified
20.3cm (8”) Round Lens
Wet Location, Horizontal DTT or TRT Lamp
DIMENSIONAL DATA
All dimensions are inches (centimeters) unless otherwise noted.
35.3
(13-7/8)
37.8
(14-7/8)
23.5
(9-1/4)
19.3
(7-9/16)
16.5
(6-1/2)
Aperture: 20 (7-7/8)
Ceiling Opening: 21.9 (8-5/8)
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
©2010-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/29/13. Specifications subject to change without notice.
LGFI-8-ROUND-LENS
PAGE 2 OF 3
Page 3
LGFI
90°
100
200
300
400
500
600
700
90°
1000
90°
1200
1500
0° 10° 20° 30°
1200
1500
20.3cm (8”) Round Lens
Wet Location, Horizontal DTT or TRT Lamp
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
LGFI 1/42TRT 8RW T73
80°
70°
60°
50°
40°
0° 10° 20° 30°
LGFI 1/42TRT 8RW FFL
200
400
600
800
0° 10° 20° 30°
80°
70°
60°
50°
40°
42TRT LAMP, 1.1 S/MH, 3200 RATED LUMENS, TEST NO. LTL14210
From 0° AveLumens
0
781
5
780
741
625
431
243
116
55
22
74
208
285
269
188
106
56
24
5
6
0
15
25
35
45
55
65
75
85
90
Zone Lumens % Lamp
566.9
0° - 30°
835.4
0° - 40°
1129.4
0° - 60°
1215.5
0° - 90°
90° - 180°
0° - 180°
0.0
1215.5
*38.0
*E fficiency
17.7
26.1
35.3
38.0
0.0
pf
pc
pw
50%30% 50%30% 50%30%
.41
1
.37
2
.34
3
4
.31
5
.28
6
.26
7
.24
8
.22
9
.20
10
.19
42TRT LAMP, 0.9 S/MH, 3200 RATED LUMENS, TEST NO. LTL14211
From 0° AveLumens
0
1023
5
1017
922
679
397
207
127
65
24
96
257
309
247
163
114
65
26
6
6
0
15
25
35
45
55
65
75
85
90
Zone Lume ns % Lamp
662.4
0° - 30°
909.6
0° - 40°
1186.5
0° - 60°
1284.0
0° - 90°
90° - 180°
0° - 180°
0.0
1284.0
*E fficiency
*40.1
20.7
28.4
37.1
40.1
0.0
pf
pc
pw
50% 30% 50% 30% 50% 30%
1
.43
2
.39
3
.36
4
.33
5
.30
6
.28
7
.26
8
.24
.22
9
.21
10
80%70% 50%
20%
.40
.40
.39
.43
.39
.35
.32
.30
.27
.25
.24
.22
.21
20%
.35
.31
.28
.25
.23
.21
.19
.18
.16
.41
.37
.33
.30
.27
.25
.23
.21
.20
.18
.39
.35
.32
.29
.27
.25
.23
.21
.20
.19
.41
.37
.34
.31
.29
.27
.25
.23
.22
.20
.35
.36
.31
.33
.28
.30
.25
.28
.23
.25
.21
.23
.19
.22
.18
.20
.16
.19
80% 70%50%
.42
.37
.33
.30
.27
.25
.23
.21
.20
.18
.38
.34
.30
.27
.25
.22
.21
.19
.17
.16
.40
.36
.32
.29
.27
.24
.22
.21
.19
.18
Mount
height
8
10
12
14
16
Mount
height
10
12
14
16
8
Inital fc
at beam
center
25.8
13.9
8.7
5.9
4.3
Inital fc
at beam
center
33.8
18.2
11.3
7.7
5.6
50% be am angle
56.4°
fc at
beam
Beam
diameter
edge
12.9
5.9
6.9
8.0
4.3
10.2
3.0
12.3
2.1
14.5
50% be am angle
49.7°
fc at
beam
Beam
5.1
6.9
8.8
10.6
12.5
edge
16.9
9.1
5.7
3.9
2.8
diameter
10% be am angle
91.6°
fc at
beam
Beam
diameter
edge
2.6
11.3
1.4
15.4
0.9
19.5
0.6
23.6
0.4
27.8
10% be am angle
83.7°
fc at
beam
Beam
9.9
13.4
17.0
20.6
24.2
edge
3.4
1.8
1.1
0.8
0.6
diameter
LGFI-8-ROUND-LENS
PAGE 3 OF 3
LGFI 2/42TRT 8RW T73
300
600
900
0° 10° 20° 30°
LGFI 2/42TRT 8RW FFL
300
600
900
80°
70°
60°
50°
40°
90°
80°
70°
60°
50°
40°
42TRT LAMP, 1.1 S/MH, 3200 RATED LUMENS, TEST NO. LTL14198
From 0° AveLumens
0
1603
5
1597
1502
1270
893
500
238
112
44
11
0
151
421
580
555
388
218
113
49
12
15
25
35
45
55
65
75
85
90
Zone Lume ns % Lamp
1152.6
0° - 30°
1708.0
0° - 40°
2313.3
0° - 60°
2487.5
0° - 90°
90° - 180°
0° - 180°
0.0
2487.5
*E fficiency
*38.9
18.0
26.7
36.1
38.9
0.0
pf
pc
pw
1
2
3
4
5
6
7
8
9
10
42TRT LAMP, 1.1 S/MH, 3200 RATED LUMENS, TEST NO. LTL14217
From 0° AveLumens
0
1621
5
1640
1638
1390
924
481
266
135
51
11
0
157
460
633
573
379
240
135
54
13
15
25
35
45
55
65
75
85
90
Zone Lumens % Lamp
1250.0
0° - 30°
1823.2
0° - 40°
2442.3
0° - 60°
2643.9
0° - 90°
90° - 180°
0° - 180°
0.0
2643.9
*E fficiency
*41.3
19.5
28.5
38.2
41.3
0.0
pf
pc
pw
1
2
3
4
5
6
7
8
9
10
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.
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2010-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/29/13. Specifications subject to change without notice.
.43
.38
.34
.30
.27
.25
.23
.21
.19
.18
.41
.36
.32
.29
.26
.23
.21
.20
.18
.17
.44
.40
.36
.33
.30
.28
.26
.24
.22
.21
.41
.37
.34
.31
.28
.26
.24
.22
.21
.19
20%
20%
.42
.38
.33
.30
.27
.25
.23
.21
.19
.18
.40
.35
.32
.28
.26
.23
.21
.20
.18
.17
.42
.38
.35
.32
.29
.27
.25
.23
.22
.20
.40
.36
.33
.30
.28
.25
.23
.22
.20
.19
.41
.37
.33
.29
.27
.24
.22
.21
.19
.18
.39
.34
.31
.28
.25
.23
.21
.19
.18
.17
80%70% 50%
50%30% 50% 30% 50%30%
.42
.38
.34
.31
.29
.26
.24
.23
.21
.20
80% 70% 50%
50% 30% 50% 30% 50%30%
.45
.40
.37
.33
.30
.28
.26
.24
.22
.21
Mount
height
8
10
12
14
16
Mount
height
8
10
12
14
16
Inital fc
at beam
center
53.0
28.5
17.8
12.1
8.8
Inital fc
at beam
center
53.6
28.8
18.0
12.3
8.9
50% be am angle
56.1°
fc at
beam
Beam
5.9
8.0
10.1
12.3
14.4
Beam
6.1
8.3
10.6
12.8
15.0
58.1°
edge
26.5
14.2
8.9
6.1
4.4
fc at
beam
edge
26.8
14.4
9.0
6.1
4.4
diameter
50% be am angle
diameter
10% be am angle
91.6°
fc at
beam
Beam
11.3
15.4
19.5
23.7
27.8
11.2
15.2
19.3
23.3
27.4
90.9°
edge
5.3
2.8
1.8
1.2
0.9
fc at
beam
edge
5.4
2.9
1.8
1.2
0.9
diameter
10% be am angle
Beam
diameter
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