Gotham 12 LAF Square Lens SpecSheet User Manual
Page 3
© 2006-2014 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 04/10/14. Specifications subject to change without notice.
PAGE 3 OF 3
LAF-12-SquARE-LEnS
LAF 2/26DTT 12FW T73
(2) 26W F26DTT/27K LAMP, 1.2 S/MH, 3600 RATED LUMENS, TEST NO. 2192100602
PH
OTO
M
ET
RY
Distribution Curve
Distribution Data
Output Data
Coefficient of Utilization
Illuminance: Single Luminaire 30” Above Floor
12” LAF
Square Lens
Wet Location, Horizontal Lamp, Double Twin-Tube or Triple-Tube
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.
LAF 2/26DTT 12FW DOL
(2) 26W F26DTT/27K LAMP, 1.5 S/MH, 3600 RATED LUMENS, TEST NO. 2192100601
LAF 2/26DTT 12FW FHL
(2) 26W F26DTT/27K LAMP, 1.5 S/MH, 3600 RATED LUMENS, TEST NO. 2192100603
LAF 2/26DTT 12FW DHL
(2) 26W F26DTT/27K LAMP, 1.3 S/MH, 3600 RATED LUMENS, TEST NO. 2192102701
From 0°
cp. Lumens
0°
674
5°
674
85
15°
642
181
25°
561
280
35°
452
280
45°
273
215
55°
139
129
65°
65
88
75°
32
35
85°
9
11
90°
0
Zone Lumens %lamp
0°-30° 504
14.01
0°-40° 783
21.78
0°-60° 1127
31.32
0°-90° 1240
34.46
90°-180° 0
0.0
0°-180° 1240
34.46*
* Fixture efficiency
50%
10%
beam angle 59.5° beam angle 96.3°
Initial fc
fc at
fc at
Mount at beam
Beam beam
Beam beam
height center
diameter edge
diameter edge
8'
22.3
6.3' 11.2
12.3'
2.2
10'
12.0
8.6' 6.0
16.7'
1.2
12'
7.5
10.9' 3.7
21.2'
0.7
14'
5.1
13.2' 2.6
25.7'
0.5
16'
3.7
15.4' 1.9
30.1'
0.4
ρ f
20%
ρc
80%
50%
30%
ρw 50% 30% 50% 30% 50% 30%
1 37 36 35 34 34 33
2 34 32 32 31 31 30
3 31 29 30 28 29 27
4 28 26 27 25 26 25
5 26 24 25 23 24 23
6 24 21 23 21 22 21
7 22 19 21 19 20 19
8 20 18 19 17 19 17
9 18 16 18 16 17 15
10 17 14 16 14 16 14
0°
45°
90°
160
320
480
640
800
From 0°
cp. Lumens
0°
709
5°
715
68
15°
875
190
25°
582
271
35°
518
319
45°
315
245
55°
118
115
65°
62
62
75°
28
31
85°
6
8
90°
0
Zone Lumens %lamp
0°-30° 528
14.68
0°-40° 846
23.51
0°-60° 1206
33.50
0°-90° 1305
36.27
90°-180° 0
0.0
0°-180° 1305
36.27*
* Fixture efficiency
ρ f
20%
ρc
80%
50%
30%
ρw 50% 30% 50% 30% 50% 30%
1 39 38 37 36 36 35
2 36 34 34 33 33 32
3 33 31 31 30 30 29
4 30 28 29 27 28 27
5 28 25 27 24 26 24
6 25 23 24 22 24 22
7 23 21 22 20 22 20
8 21 19 21 18 20 18
9 19 17 19 17 18 16
10 18 15 17 15 17 15
50%
10%
beam angle 60.3° beam angle 96.3°
Initial fc
fc at
fc at
Mount at beam
Beam beam
Beam beam
height center
diameter edge
diameter edge
8'
23.5
6.4' 11.7
12.3'
2.3
10'
12.6
8.7' 6.3
16.7'
1.3
12'
7.9
11.0' 3.9
21.2'
0.8
14'
5.4
13.4' 2.7
25.7'
0.5
16'
3.9
15.7' 1.9
30.1'
0.4
0°
45°
90°
160
320
480
640
800
From 0°
cp. Lumens
0°
691
5°
688
57
15°
667
188
25°
572
266
35°
491
306
45°
325
250
55°
127
123
65°
82
163
75°
28
31
85°
5
8
90°
0
ρ f
20%
ρc
80%
50%
30%
ρw 50% 30% 50% 30% 50% 30%
1 39 38 37 36 35 35
2 36 34 34 33 33 32
3 33 30 31 29 30 29
4 30 27 29 26 28 26
5 27 25 26 24 26 24
6 25 22 24 22 24 22
7 23 20 22 20 22 20
8 21 18 20 18 20 18
9 19 17 19 16 18 16
10 18 15 17 15 17 15
Zone Lumens %lamp
0–30° 519
14.42
0–40° 824
22.90
0–60° 1195
33.22
0–90° 1296
36.02
90–180° 0
0.0
0–180° 1296 36.02*
* Fixture efficiency
50%
10%
beam angle 59.7° beam angle 97.2°
Initial fc
fc at
fc at
Mount at beam
Beam beam
Beam beam
height center
diameter edge
diameter edge
8'
22.9
6.3' 11.4
12.5'
2.3
10'
12.3
8.6' 6.1
17.0'
1.2
12'
7.7
10.9' 3.8
21.6'
0.8
14'
5.2
13.2' 2.6
26.1'
0.5
16'
3.8
15.5' 1.9
30.6'
0.4
0°
45°
90°
160
320
480
640
800
From 0°
cp. Lumens
0°
596
5°
594
57
15°
559
159
25°
504
232
35°
384
241
45°
231
182
55°
131
121
65°
83
84
75°
56
60
85°
33
36
90°
22
ρ f
20%
ρc
80%
50%
30%
ρw 50% 30% 50% 30% 50% 30%
1 35 34 33 32 31 31
2 31 30 29 28 28 27
3 28 26 27 25 26 24
4 26 23 25 23 24 22
5 24 21 23 20 22 20
6 22 19 21 19 20 18
7 20 17 19 17 18 17
8 18 16 17 15 17 15
9 17 14 16 14 16 14
10 15 13 15 13 15 13
Zone Lumens %lamp
0–30° 445
12.38
0–40° 685
19.05
0–60° 987
27.43
0–90° 1166
32.40
90–180° 0
0.0
0–180° 1177 32.71*
* Fixture efficiency
50%
10%
beam angle 59.8° beam angle 95.7°
Initial fc
fc at
fc at
Mount at beam
Beam beam
Beam beam
height center
diameter edge
diameter edge
8'
219.7
6.9' 10.1
13.5'
2.3
10'
10.6
9.4' 5.5
18.4'
1.1
12'
6.5
11.8' 3.4
23.3'
0.7
14'
4.5
14.3' 2.3
28.2'
0.5
16'
2.5
116.8' 1.7
33.1'
0.3
0°
160
320
480
640
800
45°
90°