Gotham 10 LGF SpecSheet

Luminaire Type:
Catalog Number
(autopopulated):

Gotham Architectural Downlighting
Compact Fluorescent Downlights

10” LGF

Round Lens

Wet Location
Horizontal Triple-Tube Lamp

FEAT URES ORDERING INFORMATION

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

• 16-gauge galvanized steel mounting/plaster frame with integral yoke to retain
optical system. Maximum 1-1/4” ceiling thickness.

• 16-gauge galvanized steel mounting bars with continuous 4” vertical adjust­ment are shipped pre-installed. Post installation adjustment possible without
the use of tools from above or below ceiling.

• Galvanized steel junction box with hinged access covers and spring latch. Two
combination 1/2”–3/4” and three 1/2” knockouts for straight-through conduit
runs. Capacity: 8 (4 in, 4 out) No. 12 AWG conductors, rated for 90°C.

EXAMPLE: LGF 2/26TRT 10RW T73 MVOLT

ELECTRICAL SYSTEM

• Galvanized steel lampholder housing.

• Horizontally-mounted, four-pin, positive-latch, thermoplastic socket(s).

• Class P, thermally-protected, high power factor, electronic ballast(s) mounted to
the junction box.

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 Number of lamps/ Wattage/Lamp Door frame Lens type Voltage Ballast

LGF 1

18TRT

1

2
3

26TRT
32TRT
42TRT
57TRT

2

10RW Regressed

white door

10SB Stepped

black baffle

T73 Tempered prismatic lens
FFL Flat fresnel lens
FOL Flat opal lens

MVOLT
120
277
347

3

ECOS EcoSystem electronic dimming ballast.

ADEZ

ADZT

Minimum dimming level 5%.

4,5

Advance Mark X® electronic dimming ballast.
Minimum dimming level 5%

5

Advance Mark VII™ electronic dimming
ballast

Options

CP Chicago plenum

6

TRDA
RRL

Tamper resistant door assembly

5,7,8

RELOC®-ready luminaire. Provides compatibility with Lithonia RELOC system. Access

above ceiling required.

DS

Dual Switching

GMF Single, slow-blow fuse (not available with MVOLT)
GLR Single, fast-blow fuse (not available with MVOLT)
WLP Lamp (shipped separately)

ACCESSORIES order as separate catalog numbers (shipped separately)

SCA10

LGF-10-ROUND-LENS

PAGE 1 OF 3

Sloped ceiling adapter. Degree of slope must be specified (10D, 15D, 20D, 25D, 30D). Ex: SCA10 10D.

GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com

© 2005-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 10/02/13. Specifications subject to change without notice.

RIF Radio interference filter

9

QDS
ELR
ELRSD

Quick Disconnect System for easy ballast replacement

10

Emergency battery pack. Remote test switch provided

10

High lumen output emergency battery pack. Remote test switch and self­diagnostics module provided

GSKT Foam gasketing ships uninstalled
NEPP

Interface for Sensor Switch® nLight® network with integral power supply.
Refer to TN-623-01.

10” LGF

(45.1)

Overlap Trim:11-1/8 (28.3)

Round Lens

Wet Location, Horizontal Triple-Tube Lamp

DIMENSIONAL DATA NOTES

All dimensions are inches (centimeters) unless otherwise noted.

8-5/8

(21.9)

17-1/4
(43.8)

Aperture: 9-3/4 (24.8)
Ceiling Opening: 10-1/2 (26.7)

17-3/4

ORDERING NOTES

1. Will also operate 26DTT 4-PIN lamp.

2. Not available in 3 lamp configurations.

3. Multi-volt electronic ballast capable of operating on any voltage from 120V
through 277V, 50 or 60 Hz.

4. Not available with MVOLT.

5. Not available with 347V.

6. Uses Torx T15 rejection pin drive system.

7. Not available with 57TRT.

8. For compatible RELOC systems, refer to TECH-110.

9. Not available with ELR option.

10. For dimensional changes refer to TECH-140. For 57W and 70W consult
factory.

GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com

© 2005-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 10/02/13. Specifications subject to change without notice.

LGF-10-ROUND-LENS

PAGE 2 OF 3

10” LGF

90°

1200

1600

2000

1200

1600

2000

90°

120

160

200

1200

1600

2000

Round Lens

Wet Location, Horizontal Triple-Tube Lamp

PHOTOMETRY

Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor

LGF 2/42TRT 10RW T73

80°

400

800

0° 10° 20° 30°

70°

60°

50°

40°

LGF 2/42TRT 10RW FFL

90°

80°

400

800

0° 10° 20° 30°

70°

60°

50°

40°

42TRT LAMP, 1.1 S/MH, 3200 RATED LUMENS, TEST NO. LTL14196

From 0° AveLumens

0

2026

5

2022
1946
1712
1261

744
353
160

55
13

0

192
547
782
784
575
323
161

62
15

15
25
35
45
55
65
75
85
90

Zone Lumens % Lamp

1521.9

0° - 30°

2305.9

0° - 40°

3204.0

0° - 60°

3443.0

0° - 90°

90° - 180°

0° - 180°

0.0

3443.0

*E fficiency

*53.8

23.8

36.0

50.1

53.8

0.0

pf
pc

80% 70% 50%

pw

50% 30% 50% 30% 50% 30%

1

.58

2

.52

3

.47

4

.43

5

.39

6

.36

7

.33

8

.31

9

.28

10

.26

42TRT LAMP, 1.1 S/MH, 3200 RATED LUMENS, TEST NO. LTL14197

From 0° AveLumens

0

2183

5

2184
2101
1780
1195

677
366
169

56
13

0

208
589
811
745
527
332
170

63
15

15
25
35
45
55
65
75
85
90

Zone Lumens % Lamp

1608.2

0° - 30°

2353.3

0° - 40°

3212.3

0° - 60°

3461.3

0° - 90°

90° - 180°

0° - 180°

0.0

3461.3

*54.1

*E fficiency

25.1

36.8

50.2

54.1

0.0

pf
pc

80%70% 50%

pw

50% 30% 50%30% 50%30%

1

.58

2

.53

3

.48

4

.44

5

.40

6

.37

7

.34

8

.31

9

.29

10

.27

.56
.50
.44
.39
.35
.32
.29
.27
.25
.23

.57
.50
.44
.40
.36
.32
.30
.27
.25
.23

.57
.51
.47

.42
.39
.36
.33
.30
.28
.26

20%

.57
.52

.47
.43
.39
.36
.33
.31
.29
.27

20%

.55
.49
.43
.39
.35
.32
.29
.27
.24
.23

.56
.49
.44
.39
.35
.32
.29
.27
.25
.23

.55
.50
.45
.41
.38
.35
.32
.30
.28
.26

.55
.50
.46
.42
.38
.35
.33
.30
.28
.26

.53
.47
.42
.38
.34
.31
.29
.26
.24
.22

.54
.48
.43
.38
.35
.32
.29
.27
.25
.23

Mount
height

8
10
12
14
16

Mount
height

8
10
12
14
16

Inital fc
at be am

center

67.0

36.0

22.4

15.3

11.1

Inital fc
at be am

center

72.2

38.8

24.2

16.5

12.0

50% be am angle

58.9°
fc at

beam

Beam

6.2

8.5

10.7

13.0

15.3

edge

33.5

18.0

11.2

7.7

5.6

diameter

50% be am angle

56.8°
fc at

beam

Beam

5.9

edge

diameter

8.1

10.3

12.4

14.6

10% be am angle

Beam

diameter

11.8

16.2

20.5

24.8

29.1

10% be am angle

Beam

diameter

36.1

19.4

12.1

8.3

6.0

94.2°

11.3

15.5

19.6

23.7

27.8

fc at

beam

edge

91.7°

6.7

3.6

2.2

1.5

1.1

beam

fc at

edge

7.2

3.9

2.4

1.7

1.2

LGF 3/42TRT 10RW T73

80°

400

800

0

0

0

0° 10° 20° 30°

70°

60°

50°

40°

LGF 3/42TRT 10RW FFL

90°

80°

400

800

0° 10° 20° 30°

70°

60°

50°

40°

42TRT LAMP, 1.1 S/MH, 3200 RATED LUMENS, TEST NO. LTL14214

From 0° AveLumens

0

2203

5

2194
2086
1823
1350

791
376
169

57
14

0

208
587
834
838
612
343
171

66
16

15
25
35
45
55
65
75
85
90

Zone Lumens % Lamp

1628.3

0° - 30°

2466.4

0° - 40°

3421.4

0° - 60°

3674.0

0° - 90°

90° - 180°

0° - 180°

0.0

3674.0

*E fficiency

*38.3

17.0

25.7

35.6

38.3

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. LTL14215

From 0° AveLumens

0

2275

5

2265
2148
1868
1392

783
396
183

61
15

0

215
604
855
860
610
360
184

69
17

15
25
35
45
55
65
75
85
90

Zone Lumens % Lamp

1673.5

0° - 30°

2533.1

0° - 40°

3503.3

0° - 60°

3773.0

0° - 90°

90° - 180°

0° - 180°

0.0

3773.0

*E fficiency

*39.3

17.4

26.4

36.5

39.3

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.

LGF-10-ROUND-LENS

PAGE 3 OF 3

GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com

© 2005-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 10/02/13. Specifications subject to change without notice.

.40
.35
.31
.28
.25
.23
.21
.19
.17
.16

.41
.36
.32
.29
.26
.23
.21
.20
.18
.17

.40
.37
.33

.30
.28
.25
.23
.22
.20
.19

.42
.38

.34
.31
.28
.26
.24
.22
.21
.19

20%

20%

.39
.35
.31
.28
.25
.23
.21
.19
.17
.16

.40
.36
.32
.28
.26
.23
.21
.19
.18
.17

.39
.35
.32
.29
.27
.25
.23
.21
.20
.18

.40
.36
.33
.30
.28
.25
.23
.22
.20
.19

.38
.34
.30
.27
.24
.22
.20
.19
.17
.16

.39
.35
.31
.28
.25
.23
.21
.19
.18
.16

80% 70% 50%

50% 30% 50% 30% 50% 30%

.41
.37
.34
.31
.28
.26
.24
.22
.20
.19

80%70% 50%

50%30% 50%30% 50%30%

.42
.38
.35
.31
.29
.26
.24
.22
.21
.19

Mount
height

8
10
12
14
16

Mount
height

8
10
12
14
16

Inital fc

at be am

center

72.8

39.2

24.4

16.7

12.1

Inital fc
at be am

center

75.2

40.4

25.2

17.2

12.5

50% be am angle

58.2°
fc at

beam

Beam

diameter

diameter

edge

36.4

6.1

19.6

8.4

10.6

12.2

8.3

12.8

6.0

15.0

50% be am angle

58.0°
fc at

Beam

beam

edge

37.6

6.1

20.2

8.3

12.6

10.5

8.6

12.8

6.2

15.0

10% be am angle

93.9°
fc at

beam

Beam

diameter

diameter

edge

7.3

11.8

3.9

16.1

2.4

20.3

24.6

1.7

1.2

28.9

10% be am angle

93.3°
fc at

beam

Beam

edge

7.5

11.7

4.0

15.9

2.5

20.1

1.7

24.4

1.2

28.6