Gotham 12 LAH Square Lens T73 SpecSheet User Manual
Page 3
© 2003-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 12/05/13. Specifications subject to change without notice.
PAGE 3 OF 3
LAH-12-SquARE-T73
LAH 175M 12FW T73
175W M175/C/U LAMP, 1.1 S/MH, 12000 RATED LUMENS, TEST NO. 2189020809
PH
OTO
M
ET
RY
Distribution Curve
Distribution Data
Output Data
Coefficient of Utilization
Illuminance: Single Luminaire 30” Above Floor
12” LAH
Square Lens
T73 Prismatic Lens, Wet Location, Horizontal Lamp, Metal Halide or HPS Lamps
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.
LAH 250M 12FW T73
250W M250/C/U LAMP, 1.1 S/MH, 20500 RATED LUMENS, TEST NO. 2189032203
LAH 150S 12FW T73
150W LU150/55/D/MOG LAMP, 1.1 S/MH, 15000 RATED LUMENS, TEST NO. 2189020707
From 0°
cp. Lumens
0°
3090
5°
3066 292
15° 2898 817
25° 2505 1155
35° 1932 1206
45° 1196 938
55°
628
578
65°
309
317
75°
155
166
85°
46
54
90°
4
Zone Lumens %lamp
0°-30° 2263
18.9
0°-40° 3469
28.9
0°-60° 4985
41.6
0°-90° 5522
46.02
90°-180° 0
0.0
0°-180° 5522
46.02*
* Fixture efficiency
ρ f
20%
ρc
80%
50%
30%
ρw 50% 30% 50% 30% 50% 30%
1 50 48 47 46 45 44
2 45 43 43 41 42 40
3 41 38 39 37 38 36
4 38 35 36 34 35 33
5 35 31 33 31 32 30
6 32 28 31 28 30 27
7 29 26 28 25 27 25
8 27 23 26 23 25 23
9 25 21 24 21 23 21
10 23 19 22 19 22 19
50%
10%
beam angle 57.9° beam angle 96.6°
Initial fc
fc at
fc at
Mount at beam
Beam beam
Beam beam
height center
diameter edge
diameter edge
8'
102.2
6.1'
51.1
12.1'
10.2
10'
54.9
8.3'
27.5
16.5'
5.5
12'
34.2
10.5'
17.1
21.0'
3.4
14'
23.4
12.7'
11.7
25.4'
2.3
16'
17.0
14.9'
8.5
29.8'
1.7
0°
45°
700
1400
2100
2800
3500
90°
From 0°
cp. Lumens
0°
5802
5°
5767 549
15° 5443 1534
25° 4693 2163
35° 3599 2248
45° 2235 1749
55° 1172 1080
65°
580
596
75°
297
317
85°
90
105
90°
11
ρ f
20%
ρc
80%
50%
30%
ρw 50% 30% 50% 30% 50% 30%
1 54 53 51 50 49 48
2 50 47 47 45 45 44
3 45 42 43 41 42 40
4 41 38 40 37 39 36
5 38 34 36 33 35 33
6 35 31 33 30 33 30
7 32 28 31 27 30 27
8 29 26 28 25 28 25
9 27 23 26 23 26 23
10 25 21 24 21 24 21
Zone Lumens %lamp
0–30° 4245
20.7
0–40° 6493
31.7
0–60° 9323
45.5
0–90° 10341 50.4
90–180° 0
0.0
0–180° 10341 50.4*
* Fixture efficiency
50%
10%
beam angle 57.7° beam angle 95.6°
Initial fc
fc at
fc at
Mount at beam
Beam beam
Beam beam
height center
diameter edge
diameter edge
8'
191.8
6.1'
95.9
12.1'
19.2
10'
103.2
8.3'
51.6
16.5'
10.3
12'
64.3
10.5'
32.1
20.9'
6.4
14'
43.9
12.7'
21.9
25.3'
4.4
16'
31.8
14.9'
15.9
29.7'
3.2
0°
90°
45°
1200
2400
3600
4800
6000
From 0°
cp. Lumens
0°
4552
5°
4533 431
15° 4293 1209
25° 3695 1704
35° 2819 1759
45° 1705 1341
55°
890
820
65°
435
447
75°
221
236
85°
66
77
90°
8
Zone Lumens %lamp
0–30° 3344
22.3
0–40° 5103
34.0
0–60° 7264
48.4
0–90° 8024
53.5
90–180° 0
0.0
0–180° 8024
53.5*
* Fixture efficiency
50%
10%
beam angle 57.9° beam angle 96.0°
Initial fc
fc at
fc at
Mount at beam
Beam beam
Beam beam
height center
diameter edge
diameter edge
8'
150.5
6.1'
75.3
12.0'
15.1
10'
80.9
8.3'
40.5
16.4'
8.1
12'
50.4
10.5'
25.2
20.7'
5.0
14'
34.4
12.7'
17.2
25.1'
3.4
16'
25.0
14.9'
12.5
29.5'
2.5
0°
90°
45°
1000
2000
3000
4000
5000
ρ f
20%
ρc
80%
50%
30%
ρw 50% 30% 50% 30% 50% 30%
1 58 56 54 53 52 51
2 53 50 50 48 48 47
3 48 45 46 43 44 42
4 44 41 42 39 41 39
5 40 37 39 36 38 35
6 37 33 36 33 35 32
7 34 30 33 29 32 29
8 31 27 30 27 30 27
9 29 25 28 24 27 24
10 27 23 26 22 25 22