Gotham 11 LA Square Lens SpecSheet - Manual (Page 4)

GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2006-2014 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 04/08/14. Specifications subject to change without notice. PAGE 4 OF 4
LA-11-SquARE-LEnS
LA 11RW ALN 200W/A23 LAMP, 0.9 S/MH, 3940 RATED LUMENS, TEST NO. 2187090802
PH
OTO
M
ET
RY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
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.
From 0° cp. Lumens
0° 1093
5° 1068 102
15° 950 269
25° 810 375
35° 607 381
45° 426 330
55° 271 243
65° 125 124
75° 43 46
85° 10 10
90° 2
ρ f 20%
ρc 80% 50% 30%
ρw 50% 30% 50% 30% 50% 30%
1 51 49 48 46 46 45
2 45 43 43 41 41 40
3 41 37 38 36 37 35
4 37 33 35 32 34 31
5 33 29 32 29 31 28
6 30 26 29 26 28 25
7 28 24 27 23 26 23
8 25 22 24 21 24 21
9 23 20 23 20 22 19
10 22 18 21 18 21 18
Zone Lumens %lamp
0–30° 746 18.9
0–40° 1127 28.6
0–60° 1700 43.1
0–90° 1880 47.7
90–180° 0 0.0
0–180° 1880 47.7*
* Fixture efficiency
50% 10%
beam angle 54.0° beam angle 96.7°
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
8' 36.1 5.6' 18.1 12.4' 3.6
10' 19.4 7.7' 9.7 16.9' 2.0
12' 12.1 9.7' 6.1 21.4' 1.2
14' 8.3 11.7' 4.1 25.9' 0.8
16' 6.0 13.8' 3.0 30.4' 0.6
0°
90°
45°
300
600
900
1200
1500
11” LA
Square Lens
Wet Location, Horizontal Lamp, 150W A21 or 200W A23