GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
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CWU-8-OPEN
© 2007-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 07/31/13. Specifications subject to change without notice.
CWU8A MB
200W R40/FL LAMP, 0.9 S/MH, 2240 RATED LUMENS, TEST NO. LTL16071
CWU8A MB
300W R40/FL LAMP, 0.8 S/MH, 3650 RATED LUMENS, TEST NO. LTL16072
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
8” CWU
Up/Down, Wall-Mounted Cylinder
PAR38, R40 Lamp
From 0° cp. Lumens
0° 1098
5° 1081 103
15° 943 267
25° 675 313
35° 339 213
45°8566
55°2119
65°2 2
75°1 2
85°1 1
90°1
95°2 3
105° 34
115° 77
125° 42 38
135° 131 101
145° 466 293
155° 776 359
165° 1032 292
175° 1178 112
Zone Lumens%lamp
0°-30°683 15.2
0°-40°896 20.0
0°-60°981 21.9
0°-90°966 22.0
90°-180° 1209 27.0
0°-180° 2195 49.0*
*Efficiency
ρ c 80% 50% 30%
ρw 50% 30%50% 30% 50% 30%
1494846464544
2464544434342
3444242414140
4424040393938
5393738363736
6373536343634
7353334323432
8333133313230
9322931293129
10 30 27 29 27 29 27
50% 10%
beam angle 65.6° beam angle
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edgediameter edge
8' 36.3 4.8' 18.1 9.2' 3.6
10' 19.5 6.5' 9.8 12.5' 2.0
12' 12.2 8.3' 6.1 15.9' 1.2
14' 8.3 10.0' 4.2 19.2' 0.8
16' 6.0 11.7' 3.0 22.6' 0.6
90°
135°
45°
0°
180°
960
720
480
240
240
480
720
960
From 0° cp. Lumens
0° 1865
5° 1837 174
15° 1560 441
25° 1071 496
35° 489 307
45° 194 150
55° 72 65
65° 16 16
75° 14 15
85° 12 13
90° 11
95° 12 13
105° 14 15
115° 16 16
125° 72 65
135° 194 150
145° 489 307
155° 1071 496
165° 1560 441
175° 1837 174
Zone Lumens %lamp
0°-30° 1111 15.2
0°-40° 1418 19.4
0°-60° 1633 22.4
0°-90° 1677 23.0
90°-180° 1677 23.0
0°-180° 3354 46.0*
*Efficiency
ρ c 80% 50%30%
ρw50% 30% 50% 30%50% 30%
1454335353029
2413833312827
3373530292625
4343228272523
5312926242322
6292625232220
7272423212019
8252222201918
9242120181817
10 22 19 19 17 17 16
50
0%
beam angle 43.6° beam angle 78.2
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edge diameter edge
8' 61.7 4.4' 30.8 8.9' 6.2
10' 33.2 6.0' 16.6 12.2' 3.3
12' 20.7 7.6' 10.3 15.4' 2.1
14' 14.1 9.2' 7.1 18.7' 1.4
16' 10.2 10.8' 5.121.9' 1.0
90°
135°
45°
0°
180°
800
400
400
800
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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