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. 12/05/13. Specifications subject to change without notice.
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CH-13-OPEN-ED17
CH13 175M AR
175W M175/C LAMP, 1.0 S/MH, 14000 RATED LUMENS, TEST NO. 2188090905
CH13 250M AR
250W M250/C LAMP, 1.3 S/MH, 20500 RATED LUMENS, TEST NO. 42883
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
13” CH
Cylinders
Metal Halide or High Pressure Sodium, 12” Aperture
From 0° cp. Lumens
0° 8411
5° 8517 807
15° 7670 2178
25° 6425 2914
35° 3709 2337
45° 1064 906
55° 33 104
65° 00
75° 00
85° 00
Zone Lumens %lamp
0°-30° 5899 42.1
0°-40° 8236 58.8
0°-60° 9245 66.0
0°-90° 9245 66.0
90°-180°0 0.0
0°-180° 9245 66.0*
*Efficiency
50% 10%
beam angle 54° beam angle
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
10' 149.5 7.7' 74.8 13.0' 15.0
12' 93.2 9.8' 46.6 16.4
.3
14' 63.6 11.9' 31.8 19.9
.4
16' 46.2 13.9' 23.1 23.4
.6
18' 35.0 16.0' 17.5 26.8
.5
ρ c80% 50%30%
ρw50% 30% 50% 30% 50% 30%
1747270696766
2696766646463
3656263606159
4625859575856
5585456535553
6555153505250
7484547444744
8484547444744
9454244414441
10 43 39 42 38 41 38
1800
3600
5400
7200
9000
90°
45°
0°
From 0° cp. Lumens
0° 7451
5° 7582 720
15° 8275 2342
25° 8562 3964
35° 5576 3628
45° 2211 1711
55° 817 733
65° 87 86
75° 35 37
85° 27 29
Zone Lumens %lamp
0°-30° 7026 34.3
0°-40° 10654 52.0
0°-60° 13098 63.9
0°-90° 13250 64.6
90°-180°0 0.0
0°-180° 13250 64.6*
*Efficiency
50
0%
beam angle 65.6° beam angle 91.2
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
8' 246.3 7.1' 123.2 11.2' 24.6
10' 132.5 9.7' 66.215.3' 13.2
12'82.612.2' 41.3 19.4' 8.3
14'56.314.8' 28.2 23.5' 5.6
16'40.917.4' 20.4 27.6' 4.1
ρ c80% 50%30%
ρw50% 30%50% 30%50% 30%
1717067666564
2666463616160
3625859575856
4585455535452
5545052495148
6504648454744
7464245414441
8433942384138
9403639353835
10 37 33 36 32 35 32
1800
3600
5400
7200
9000
90°
45°
0°
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.
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