Gotham 4 SQTH SpecSheet

Luminaire Type:
Catalog Number
(autopopulated):

Gotham Architectural Downlighting
HID Downlights

4” SQTH

Vertical Lamp

T4/T6 Lamp

FEAT URE S ORDERING INFORMATION NOTES

OPTICAL SYSTEM

• Self-flanged, matte-diffuse high impact polymer finishing trim with a durable,
proprietary vapor deposition finish.

• Patented Bounding Ray™ Optical Principle design (U.S. Patent No. 5,800,050)
provides lamp before lamp image and smooth transition from top of the reflector
to bottom.

• One piece trim eliminates mitered flange corners and inside corner gaps.

• Interchangeable upper reflectors provide narrow, medium and wide distributions.

• 1/8” thick softening lens eliminates beam striations and provides required

protective shielding.

MECHANICAL SYSTEM

• Rolled steel housing with matte black finish and 16-gauge painted steel mount­ing/plaster frame accommodates up to 1-1/2” thick ceiling materials.

• Patent-pending 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: SQTH T6 70MHC 4AR N LD 120

• 16-gauge galvanized steel mounting bars with continuous 4” vertical adjust­ments are shipped pre-installed.

• Post-installation adjustment possible without the use of tools from above or
below ceiling.

• Secondary housing adjustment system for precise, final ceiling to flange alignment.

ELECTRICAL SYSTEM

• Tool-less access door provides access to junction box and ballast through
the aperture.

• G12 (T6), G8.5 (T4) or PGJ5 (T4T) base ceramic socket.

• Pre-wired, electronic, 120 or 277V ballast module is standard.

• 3000 K lamp ships standard.

• 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.
Requires access above ceiling.

WARRANTY

• 1-year limited warranty. Complete warranty terms located at:

www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx

Series Lamp type Wattage Ap e r tur e / Tr im Distribution Finish Voltage Options

SQTH T4T

T4
T6

1

2

20MHC
39MHC
70MHC

4AR Clear
4PR Pewter
4WTR Wheat

3

4WR
4BR

White

3

Black

N Narrow
M Medium
W Wide

4DSR Stepped
4PDSR Pewter stepped
4WDSR Wheat stepped

4

(blank)

Semi­specular

LD Matte-

diffuse

120
277
347

5

QRS
QRSTD
EC
SF Single fuse
LRC

Quartz restrike system

5

QRS with time delay

5

Emergency circuit

6

Provides compatibility with Lithonia Reloc®
System. Access above ceiling required.

TRW White flange

7

MFLG
SQMT

Microflange trim

8

Square metal trim

CP Chicago plenum approved
L/LP Less lamp

ORDERING NOTES

1. Philips Mini MasterColor available in 20W, 39W & 120V only.

2. Available in 39W and 70W only.

3. Not available with matte-diffuse finish.

4. Available with WR and BR trim colors and SQMT metal trim option.

SQTH-4-OPEN

PAGE 1 OF 3

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

© 2009-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/30/13. Specifications subject to change without notice.

5. Only available with SQMT metal trim option.

6. For compatible Reloc systems, refer to TECH-110.

7. MFLG standard with high impact polymer trim; must specify SQMT option
for metal microflange trim. Order ships as 3 components: housing, trim and
microflange gypsum board.

8. Not available with stepped trims.

4” SQTH
Vertical Lamp

T4/T6 Lamp

DIMENSIONAL DATA

All dimensions are inches (centimeters) unless otherwise noted.

9-7/8

15-1/4

(25.0)

(38.9)

Ceiling opening: 5-1/8 (13.0)
Overlap trim: 5-3/4 (14.6)
Aperture opening: 4-3/8 (11.1)

17-3/16

(43.7)

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

© 2009-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/30/13. Specifications subject to change without notice.

SQTH-4-OPEN

PAGE 2 OF 3

4“ SQTH

%02fp

%02fp

Vertical Lamp

T4/T6 Lamp

PHOTOMETRY

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

SQTH T4 39MHC 4AR LD N

180°

90°

80°

1300

2600

3900

5200

6500

0° 20°

60°

40°

SQTH T4 39MHC 4AR LD M

180°

90°

80°

400

800

60°

1200

1600

2000

40°

0° 20°

SQTH T4 39MHC 4AR LD W

15°
25°
35°
45°
55°
65°
75°
85°

15°
25°
35°
45°
55°
65°
75°
85°

90

90

(1) CMH39/TC/U/830 lamp, 0.4 s/mh, 3400 rated lumens, Test No. LTL18055

Ave Lumens

0°

6532

5°

5533
2137

412

47
12

Zone Lumens % Lamp

0° - 30°

1260
0° - 40°
0° - 60°
0° - 90°

1295

1312

1320

1320

0

464
588
209

90° - 180°

35

0° - 180°

10

8

7

6

6

0

1

0

1

0

pc 80% 70%50%
pw 50% 30%10% 50% 30% 10% 50% 30% 10%

37.1

38.1

38.6

38.8

0.0

38.8

46

46

0
1
2
3
4
5
6
7
8
9

10

46

44

43

42

42

41

40

40

39

37

38

37

36

37

35

34

36

34

33

35

33

32

33

32

31

33

31

30

32

30

29

(1) CMH39/TC/7/830 lamp, 0.9 s/mh, 3400 rated lumens, Test No. LTL18056

Ave Lumens

0°

2212

5°

2218
2229
1404

378

46

5
2
4
2
1

212
615
630
252

Zone Lumens % Lamp
0° - 30°
0° - 40°
0° - 60°
0° - 90°

90° - 180°

0° - 180°

43

5
3
2
1

1458
1709
1757
1763

1763

0

pc 80%70% 50%

pw 50%30% 10%50% 30%10% 50% 30% 10%

42.9

50.3

51.7

51.9

0.0

51.9

62

62

0
1
2
3
4
5
6
7
8
9

10

62

58

57

55

54

52

51

51

48

47

48

45

43

45

42

40

43

40

38

40

38

36

38

35

33

36

34

32

35

32

30

(1) CMH39/TC/U/830 lamp, 0.9 s/mh, 3400 rated lumens, Test No. LTL18057

Inital fc
at beam

center

215.9

116.1

72.4

49.4

35.8

50% beam angle

Beam

diameter

2.1

2.8

3.6

4.3

5.1

45

45

45

43

43

43

42

42

41

40

39

39

38

37

38

37

35

37

35

34

35

34

33

34

33

32

33

32

31

32

31

30

31

30

29

43

41

41

40

40

39

38
38
37
36
35
34
33
32
31

Mount

37

37

height

36

35

35
34
33
32
31
30

8.0

34

10.0

33

12.0

32

14.0

31

16.0

30

29

21.4°
fc at

beam

edge

108.0

58.1

36.2

24.7

17.9

10% beam angle

43.2°
fc at

beam

Beam

edge

diameter

4.4

21.6

5.9

11.6

7.5

9.1

10.7

7.2

4.9

3.6

%02fp

60

60

60

58

58

57

56

55

53

51

50

50

48

46

47

45

43

45

42

40

42

40

38

40

37

35

38

35

33

36

33

32

34

32

30

58

55

54

53
52
49
46
44
42
39
37
36
34

Mount

50

49

height

47

45

44
41
39
37
35
33
32

8.0

42

10.0

40

12.0

37

14.0

35

16.0

33

32

30

Inital fc
at beam

center

73.1

39.3

24.5

16.7

12.1

50% beam angle

Beam

diameter

5.0

6.8

8.7

10.5

12.3

49.0°
fc at

beam

edge

36.6

19.7

12.3

8.4

6.1

10% beam angle

69.4°
fc at

beam

Beam

edge

diameter

7.6

10.4

13.2

15.9

18.7

7.3

3.9

2.5

1.7

1.2

180°

90°

80°

400

800

60°

1200

1600

2000

0° 20°

40°

SQDTH T4 70MHC 4AR LD N

180°

90°

1900

3800

5700

7600

9500

0° 20°

80°

60°

40°

Ave Lumens

0°

2079

5°

2092

15°

2136

25°

1410

35°

388
45°
55°
65°
75°
85°

90

Ave Lumens

0°

9770

5°

8575

15°

3709

25°

851

35°

100
45°
55°
65°
75°
85°

90

Zone Lumens% Lamp

0° - 30°

1423
0° - 40°
0° - 60°
0° - 90°

1681

1733

1750

0

1750

201
592
630

90° - 180°

259

47

8
8
6
4
1

0° - 180°

45

7
8
6
3

(1) CMH70/TC/7/830 lamp, 0.4 s/mh, 6200 rated lumens, Test No. LTL18044

Zone Lumens % Lamp

0° - 30°

2169
0° - 40°
0° - 60°
0° - 90°

2244

2262

2267

2267

0

731

1018

420

90° - 180°

76

17

5
2
2
1
0

0° - 180°

14

4
3
2
1

pc 80% 70%50%
pw 50% 30% 10%50%30% 10% 50% 30% 10%

41.8

49.4

51.0

51.5

0.0

51.5

35.0

36.2

36.5

36.6

0.0

36.6

61

0
1
2
3
4
5
6
7
8
9

10

pc 80%70% 50%
pw 50% 30%10% 50% 30% 10% 50%30%10%

0
1
2
3
4
5
6
7
8
9

10

61

57

56

53

51

50

48

47

44

44

42

42

39

40

37

38

35

36

33

34

31

44

44

41

41

39

38

38

36

36

35

35

33

33

32

32

31

31

30

30

29

29

28

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.

Inital fc

at beam

center

68.7

37.0

23.0

15.7

11.4

Inital fc
at beam

center

323.0

173.7

108.3

73.9

53.6

50% beam angle

Beam

diameter

5.1

7.0

8.9

10.8

12.6

50% beam angle

Beam

diameter

2.3

3.1

3.9

4.8

5.6

61

60

60

60

57

57

55

56

55
50
46
42
40
37
35
33
31
29

44
40
37
35
33
32
31
30
29
28
27

54

53

51

49

49

47

45

47

44

42

44

41

39

42

39

37

39

37

35

37

35

33

35

33

31

34

31

29

%02fp

43

43

43

40

40

39

39

38

37

37

36

35

36

34

33

34

33

32

33

32

31

32

31

30

31

30

29

30

29

28

29

28

27

57

54

53

52

51

49

48

48

46

45

43

43

41

41

38

39

36

37

34

35

32

33

31

41

41

39

39

38

37

36

35

35

34

34

33

33

31

32

30

31

29

30

29

29

28

Mount

45

height

42

8.0

39

10.0

37

12.0

34

14.0

33

16.0

31
29

41
38
36

Mount

34

height

33

8.0

32

10.0

30

12.0

29

14.0

28

16.0

28
27

50.2°

23.4°

fc at

beam

edge

34.4

18.5

11.5

7.9

5.7

fc at

beam

edge

161.6

86.9

54.2

37.0

26.8

10% beam angle

70.3°
fc at

beam

Beam

edge

diameter

7.7

10.6

13.4

16.2

19.0

10% beam angle

45.9°

fc at

beam

Beam

edge

diameter

32.3

4.7

17.4

6.3

10.8

8.0

9.7

11.4

6.9

3.7

2.3

1.6

1.1

7.4

5.4

SQTH-4-OPEN

PAGE 3 OF 3

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

© 2009-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/30/13. Specifications subject to change without notice.