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Ah 70m 4ar, 4” ah open reflector – Gotham 4 AH Open Reflector SpecSheet User Manual

Page 3

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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. 07/01/13. Specifications subject to change without notice.

PAGE 3 OF 3

AH-4-OPEn

AH 70M 4AR

(1) MP70/C/U/MED LAMP, 4700 RATED LUMENS, 1.0 S/MH, TEST NO. LTL13274

PH

OTO
M

ET

RY

Distribution Curve

Distribution Data

Output Data

Coefficient of Utilization

Illuminance: Single Luminaire 30” Above Floor

4” AH

Open Reflector

Metal Halide Lamp

Zone

Lumens % Lamp

0° - 30°
0° - 40°
0° - 60°
0° - 90°

90° - 180°

0° - 180°

996.7

1482.7
1812.7
1818.7

0.0

1818.7

21.2
31.5
38.6
38.7

0.0

*38.7

*E fficiency

10°

20°

30°

40°

50°

60°

70°

80°

90°

300

600

900

1200

1500

pf
pc
pw

20%

80%

70%

50%

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

1
2
3
4
5
6
7
8
9

10

.43
.39
.36
.33
.31
.28
.26
.25
.23
.22

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

.42
.38
.35
.33
.30
.28
.26
.24
.23
.21

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

.40
.37
.34
.32
.30
.28
.26
.24
.22
.21

.39
.36
.33
.30
.28
.25
.23
.22
.20
.19

F rom 0°

Ave

Lumens

0
5

15
25
35
45
55
65
75
85
90

1514
1469
1308
1075

787
365

34

4
1
0
0

138
368
491
486
284

46

4
2
0

50% beam angle

52.1°

10% beam angle

88.3°

Mount
height

Inital fc

at beam

center

B eam

diameter

fc at

beam

edge

B eam

diameter

fc at

beam

edge

8

10
12
14
16

50.0
26.9
16.8
11.4

8.3

5.4
7.3
9.3

11.2
13.2

25.0
13.5

8.4
5.7
4.2

10.7
14.6
18.4
22.3
26.2

5.0
2.7
1.7
1.1
0.8

PHOTOMETRY NOTES

Tested to current IES and NEMA standards under stabilized laboratory condition.

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.