Gotham 6 A Open Reflector SpecSheet User Manual
Page 3
© 2009-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 06/26/13. Specifications subject to change without notice.
PAGE 3 OF 3
A-6-OPEN
A 6AR (100 A19)
(1) 100A LAMP, 1750 RATED LUMENS, 1.3 S/MH, TEST NO. LTL7258
A 6AR (150 A21)
(1) 150A LAMP, 2780 RATED LUMENS, 1.2 S/MH, TEST NO. LTL7257
A 6MB (150 A21)
(1) 150A LAMP, 2780 RATED LUMENS, 1.2 S/MH, TEST NO. LTL7636
A 6BC (150 A21)
(1) 150A LAMP, 2780 RATED LUMENS, 1.1 S/MH, TEST NO. LTL7638
PH
OTO
M
ET
RY
Distribution Curve
Distribution Data
Output Data
Coefficient of Utilization
Illuminance: Single Luminaire 30” Above Floor
6” A
Open Reflector
A19, A21 Lamp
From 0°
cp. Lumens
0°
1159
0
5°
1174 113
15° 1196 341
25° 1117 500
35°
617 381
45°
144 118
55°
2
3
65°
1
1
75°
0
0
85°
0
0
90°
0
0
ρf
20%
ρc
80%
70%
50%
ρw 50% 30% 50% 30% 50% 30%
1 58 57 57 56 55 54
2 54 51 53 51 51 49
3 50 47 49 47 48 46
4 46 43 46 43 45 42
5 43 40 43 40 42 39
6 40 37 40 37 39 36
7 38 34 37 34 37 34
8 35 32 35 32 34 32
9 33 30 33 30 32 29
10 31 28 31 28 30 28
Zone Lumens %lamp
0°-30° 954
34.3
0°-40° 1335 48.0
0°-60° 1455 52.3
0°-90° 1456 52.4
90°-180° 0
0.0
0°-180° 1456 52.4*
*Efficiency
50%
10%
beam angle 59.7° beam angle 83.7°
Initial fc
fc at
fc at
Mount at beam
Beam
beam
Beam
beam
height center
diameter edge
diameter edge
8'
38.3
6.3' 19.2
9.8'
3.8
10'
20.6
8.6' 10.3
13.4'
2.1
12'
12.8
10.9' 6.4
17.0'
1.3
14'
8.8
13.2' 4.4
20.5'
0.9
16'
6.4
15.5' 3.2
24.1'
0.6
240
480
720
960
1200
90
o
45
o
0
o
From 0°
cp. Lumens
0°
1510
0
5°
1541 144
15° 1443 409
25° 1352 612
35°
886
536
45°
211
178
55°
6
9
65°
1
1
75°
0
0
85°
0
0
90°
0
0
ρf
20%
ρc
80%
70%
50%
ρw 50% 30% 50% 30% 50% 30%
1 75 73 74 72 71 70
2 69 67 68 66 66 64
3 64 61 63 60 62 59
4 60 56 59 55 57 54
5 55 51 55 51 54 50
6 52 47 51 47 50 46
7 48 44 48 44 47 43
8 45 41 45 40 44 40
9 42 38 42 38 41 37
10 40 35 39 35 39 35
Zone Lumens %lamp
0°-30° 1166
41.9
0°-40° 1702
61.2
0°-60° 1889
67.9
0°-90° 1890
68.0
90°-180° 0
0.0
0°-180° 1890
68.0*
*Efficiency
50%
10%
beam angle 60.1°
beam angle 84.6°
Initial fc
fc at
fc at
Mount at beam
Beam
beam
Beam
beam
height center
diameter edge
diameter edge
8'
49.9
6.4' 25.0
10.0'
5.0
10'
26.8
8.7' 13.4
13.6'
2.7
12'
16.7
11.0' 8.4
17.3'
1.7
14'
11.4
13.3' 5.7
20.9'
1.1
16'
8.3
15.6' 4.1
24.6'
0.8
320
640
960
1280
1600
90
o
45
o
0
o
From 0°
cp. Lumens
0°
801
0
5°
813
78
15°
830
236
25°
845
383
35°
599
364
45°
151
124
55°
1
2
65°
0
0
75°
0
0
85°
0
0
90°
0
0
ρf
20%
ρc
80%
70%
50%
ρw 50% 30% 50% 30% 50% 30%
1 75 73 73 72 71 69
2 69 66 68 65 66 64
3 64 60 63 60 61 58
4 59 55 58 55 57 54
5 55 51 54 50 53 49
6 51 46 50 46 49 46
7 47 43 47 43 46 42
8 44 40 44 39 43 39
9 41 37 41 37 40 36
10 39 34 38 34 38 34
Zone Lumens %lamp
0°-30° 697
39.8
0°-40° 1061
60.6
0°-60° 1188
67.9
0°-90° 1188
67.9
90°-180° 0
0.0
0°-180° 1188
67.9*
*Efficiency
50%
10%
beam angle 65.7°
beam angle 87.5°
Initial fc
fc at
fc at
Mount at beam
Beam
beam
Beam
beam
height center
diameter edge
diameter edge
8'
26.5
7.1' 13.2
10.5'
2.6
10'
14.2
9.7'
7.1
14.3'
1.4
12'
8.9
12.3' 4.4
18.1'
0.9
14'
6.1
14.9' 3.0
22.0'
0.6
16'
4.4
17.4' 2.2
25.8'
0.4
180
360
540
720
900
90
o
45
o
0
o
From 0°
cp. Lumens
0°
1249
0
5°
1289 123
15° 1257 356
25° 1104 497
35°
622
384
45°
154
124
55°
1
1
65°
0
0
75°
0
0
85°
0
0
90°
0
0
ρf
20%
ρc
80%
70%
50%
ρw 50% 30% 50% 30% 50% 30%
1 59 58 58 57 56 55
2 55 53 54 52 52 50
3 51 48 50 48 49 47
4 47 44 47 44 46 43
5 44 41 44 41 43 40
6 41 38 41 38 40 37
7 39 35 38 35 37 35
8 36 33 36 33 35 32
9 34 31 34 30 33 30
10 32 29 32 29 31 28
Zone Lumens %lamp
0°-30° 975
35.1
0°-40° 1359
48.9
0°-60° 1485
53.4
0°-90° 1485
53.4
90°-180° 0
0.0
0°-180° 1485
53.4*
*Efficiency
50%
10%
beam angle 57.7°
beam angle 83.4°
Initial fc
fc at
fc at
Mount at beam
Beam
beam
Beam
beam
height center
diameter edge
diameter edge
8'
41.3
6.1' 20.6
9.8'
4.1
10'
22.2
8.3' 11.1
13.3'
2.2
12'
13.8
10.5' 6.9
16.9'
1.4
14'
9.4
12.7' 4.7
20.4'
0.9
16'
6.9
14.9' 3.4
24.0'
0.7
0
o
260
520
780
1040
1300
90
o
45
o
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.