Gotham 4 DMRH SpecSheet

Luminaire Type:
Catalog Number
(autopopulated):

Gotham Architectural Downlighting
HID Downlights

4” DMRH

Downlight

Open Cone
MR16 Ceramic Metal Halide Lamp

FEAT URES ORDERING INFORMATION NOTES

OPTICAL SYSTEM

• Internal housing components painted matte black. Lamp snoot minimizes stray
light in housing.

• Self-flanged, semi-specular, matte-diffuse or specular cone with flange that
matches cone finish.

• Optical system retained by self-aligning torsion support springs.

MECHANICAL SYSTEM

• Black painted housing features tool-less top access and accommodates a
maximum 1-1/2” ceiling thickness.

• Tool-less re-lamp capability from above or below ceiling.

• 16-gauge galvanized steel mounting bars with continuous 4” vertical adjust-

ment are shipped pre-installed. Post installation adjustment possible without
the use of tools above or below ceiling.

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

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

EXAMPLE: DMRH DWN MR16 20MHC 4AC 120

ELECTRICAL SYSTEM

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

• Replaceable socket assembly. GX10 socket assembly standard (20W - 39W).

• Electronic ballast module is standard and can be serviced from above or below

ceiling. Servicing from below requires removal of housing wrap and 6” of clear­ance above housing.

• Thermally-activated insulation detector.

LISTING

• Fixtures are UL Listed for thru-branch wiring, non-IC recessed mounting and
damp locations. Listed an 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 Configuration Lamp type Lamp wattage Aperture/Trim color Finish Voltage

DMRH DWN MR16 MR16 capability 20MHC

39MHC

4AC

Clear

4BC1Black
4PC Pewter

(blank) Semi-specular

LD Matte-diffuse
LS Specular

120
277

4WTC Wheat
4GC Gold

1

4MB

Contoured black baffle

4WC1White painted

1

4WB

Contoured white baffle

Options

2

SF Single fuse
TRW White painted flange
TRBL Black painted flange

RRL

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

CP

Chicago plenum

ACCESSORIES order as separate catalog numbers (shipped separately)

• For lens accessories, refer to TECH-120.

ORDERING NOTES

1. Not available with finishes.

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

DMRH-4-OPENCONE

PAGE 1 OF 3

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

© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/08/13. Specifications subject to change without notice.

LPFL Lamped, flood
LPSP Lamped, spot
LPWFL Lamped, wide flood

4” DMRH
Downlight

Open Cone, MR16 Ceramic Metal Halide Lamp

DIMENSIONAL DATA

All dimensions are inches (centimeters) unless otherwise noted.

15-1/4

(38.5)

15-9/16

(39.5)

6-3/4
(17.2)

Aperture: 4-5/16 (11.0)
Ceiling opening: 4-7/8 (12.4)
Overlap trim: 5-7/16 (13.8)

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

© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/08/13. Specifications subject to change without notice.

DMRH-4-OPENCONE

PAGE 2 OF 3

4” DMRH

pf

20%

rFC

0

8
7
9
0
5

pf

20%

90

0

1900

3800

5700

7600

9500

32.5

17.5

10.9

Downlight

Open Cone, MR16 Ceramic Metal Halide Lamp

PHOTOMETRY

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

DMRH DWN MR16 20MHC 4AC

90°

500

1000

1500

2000

2500

0° 10° 20° 30°

0

80°

70°

60°

50°

40°

DMRH DWN MR16 35MHC 4AC

90°

0
5

80°

10
15

70°

20
25

60°

30
35
40

50°

45
50
55
60

40°

65
70

0° 10° 20° 30°

0

75
80
85

20W, CMH20MR16/830/WFL, 1700 DELIVERED LUMENS, 0.5 S/MH, TEST NO. LTL17334

Ave LumensFrom 0°

2656

0

2583
2185
1529

852
410
213
117

50

9
3
0
0
0
0
0
0
0

233

411

202

75

11

5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90

0° - 30°
0° - 40°
0° - 60°
0° - 90°

90° - 180°

0° - 180°

0

0

0

0

Zone Lumens % Lamp

845.9

921.2

932.2

932.2

0.0

932.2

49.8

54.2

54.8

54.8

0.0

54.8

pc

80% 70%50%

pw

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

0

65

1

62

2

58

3

56

4

53

5

51

6

49

7

47

8

45

9

43

10

42

64

65

65

60

60

59

57

57

55

55

53

52

52

51

49

50

48

46

48

46

44

46

44

42

45

42

41

43

41

39

42

39

38

61

64

64

58

59

59

56

56

55

53

53

51

51

50

49

49

48

46

47

46

44

46

44

42

44

42

41

43

41

39

41

39

38

61
57
54
52
49
47
45
44
42
40
39

39W, CH39MR16/930/FL, 3400 DELIVERED LUMENS, 0.4 S/MH, TEST NO. LTL17329

pc

Ave LumensFrom 0°
9835
9078
6283
3338
1500

713

384

215

89
10

1
0
0
0
0
0
0
0

769

928

354

136

18

90° - 180°

0° - 180°

0

0

0

0

Zone Lumens% Lamp

0° - 30°

2050.7

2186.3

2204.9

2204.9

0.0

2204.9

60.3

64.3

64.8

64.8

0.0

64.8

0° - 40°
0° - 60°
0° - 90°

80% 70%50%

pw

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

77

77

77

75

75

75

0

73

72

71

1

70

2

67

3

64

4

62

5

59

6

57

7

56

8

54

9

52

10

72

68

66

69

64

62

66

61

59

63

59

57

61

57

55

59

55

53

57

53

51

55

51

49

54

50

48

52

72

71

70

69

67

65

67

64

62

64

61

59

62

59

57

60

56

55

58

54

53

56

53

51

55

51

49

53

50

48

52

72
68
65
62
60
58
56
54
52
51
49

61
57
53
50
48
46
44
42
40
39
37

Mounting

Height

8.0

10.0

12.0

14.0

16.0

Inital FC

72
68
64
61
58
56
54
52
51
49
48

Mounting

Height

8.0

10.0

12.0

14.0

16.0

Inital FC

Center

Beam

325.1

174.8

109.0

74.4

54.0

50% beam

Center

Beam

87.8

47.2

29.4

20.1

14.6

30.7°

Diameter FC Diamete

43.9

3.0

23.6

4.1

14.7

5.2

10.0

6.3

7.3

7.4

50% beam

23.3°

Diameter FC DiameterFC

2.3

162.5

3.1

87.4

3.9

54.5

4.7

37.2

5.6

27.0

10% beam

51.9°

5.4

7.3

9.2

11.2

13.1

10% beam

42.9°

4.3

5.9

7.5

9.0

10.6

7.4

5.4

8.

4.

2.

2.

1.

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.

DMRH-4-OPENCONE

PAGE 3 OF 3

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

© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/08/13. Specifications subject to change without notice.