Job Information Type:
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We reserve the right to change details of design, materials and finish.
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Lighting Systems CL-1
1BHFPG Covelite™-BNQ5QFS'PPU4FDUJPO
#
CANDLEPOWER
Zone 0 22 45 67 90 112 135 157 180
Deg.
CANDELAS
180 433 433 433 433 433 433 433 433 433
175 540 524 514 464 444 393 382 352 344
165 772 739 678 535 438 303 238 171 160
155 985 926 816 579 411 199 153 96 91
145 1142 1099 952 607 364 122 76 39 30
135 1142 1084 959 608 297 74 25 6 0
125 1154 1034 888 619 231 33 0 0 0
115 1034 988 816 487 145 0 0 0 0
105 721 703 660 385 85 0 0 0 0
95 255 250 227 180 33 0 0 0 0
90 72 66 46 25 0 0 0 0 0
0 0 00000000
REPORT NO: LRL896-1F
LAMP: 1-F32T8
LUMENS: 2900
EFFICIENCY: 75.3%
Quick Calculators and Ceiling Brightness
Distribution Summary
Zone
Lumens % Barelamp %Luminaire
0-90 769 0.0 0.0
90-180 2184 75.3 100.00
0-180 2184 75.3 100.00
Readings are rounded off based on initial footcandles at center of 20-foot run of luminaires. Room reflectance is 80% ceiling, 50% wall and 20% floor.
1Lt, 2 Fixtures, 2 Walls, 11" (0.28m) from Ceiling
Distance from wall
0' 2' 4' 6' 8' 10' 12' 14'
11" (0.28m) 105 32 14 14 32 105
8'6" (2.59m) 36 36 35 35 36 36
9'6" (2.90m) 34 34 34 34 34 34
10'6" (3.20m) 31 32 32 32 32 31
11'6" (3.51m) 30 30 30 30 30 30
12'6" (3.81m) 28 29 29 29 29 28
1Lt, 1 Fixture, 1 Wall, 11" (0.28m) from Ceiling
Distance from wall
0' 2' 4' 6' 8' 10' 12' 14'
100 27 8 6 5 5
26 24 20 15 12 10
23 22 18 15 12 10
21 20 17 15 12 10
19 18 16 14 12 10
18 17 15 14 12 10
1Lt, 2 Fixtures, 2 Walls, 14" (0.36m) from Ceiling
Distance from wall
0' 2' 4' 6' 8' 10' 12' 14'
14" (0.36m) 116 44 17 17 44 116
35 36 35 35 36 35
33 34 34 34 34 33
31 32 32 32 32 31
29 30 30 30 30 29
27 28 29 29 28 27
1Lt, 2 Fixtures, 1 Wall, 14" (0.36m) from Ceiling
Distance from wall
0' 2' 4' 6' 8' 10' 12' 14'
14" (0.36m) 111 39 10 7 5 5
25 23 20 16 12 10
23 21 18 15 12 10
20 19 17 15 12 10
19 18 16 14 12 10
17 17 15 13 12 10
Distance From Ceiling
Distance From Ceiling
Distance From Ceiling
Distance From Ceiling
1000
800
600
400
200
571561551
35
0
5
15
25
45
55
65
75
85
90
95
105
115
125
135
145
Maximum Candle Power: 1154 CD at 125°
Brightness ratio on vertical wall above fixture is:
1:1.5 when mounted 11" (0.28m) from ceiling;
1:1.7 when mounted 14" (0.36m) from ceiling.
Performance
CANDLEPOWER CURVE
COEFFICIENTS OF UTILIZATION
% EFFECTIVE CEILING CAVITY REFLECTANCE
80 70 50
% WALL REFLECTANCE
50 30 10 50 30 10 50 30 10
162 595753 5149 363534
254 504747 4340 323028
348 433941 3734 282624
442 373236 3228 252220
537 312732 2724 221917
633 272328 2420 191714
729 242025 2117 171512
826 211723 1815 161311
924 191521 1613 14119
10 22 17 13 19 15 12 13 10 8
20% FLOOR CAVITY REFLECTANCE
ROOM CAVITY RATIO
0 0.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m
0 0.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m
0 0.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m
0 0.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m
11" (0.28m)
8'6" (2.59m)
9'6" (2.90m)
10'6" (3.20m)
11'6" (3.51m)
12'6" (3.81m)
8'6" (2.59m)
9'6" (2.90m)
10'6" (3.20m)
11'6" (3.51m)
12'6" (3.81m)
8'6" (2.59m)
9'6" (2.90m)
10'6" (3.20m)
11'6" (3.51m)
12'6" (3.81m)