
Job Information Type:
631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710
We reserve the right to change details of design, materials and finish.
www.lightolier.com © 2010 Philips Group •
Lighting Systems CL-4
Page 2 of 2 Covelite 2-Lamp T5 or T5HO
C1210
1250
2500
3750
180˚ 165˚ 150˚
135˚
120˚
105˚
90˚
90 1146 794 14 15 8
95 1831 1289 47 18 7
105 2719 1925 148 29 15
115 2738 1829 254 155 57
125 2438 1628 354 281 204
135 2043 1386 448 391 339
145 1571 1179 519 443 447
155 1254 988 576 505 488
165 963 830 615 563 545
175 753 695 632 613 604
180 641 641 641 641 641
91 91 91 78 78 78 56 56 56
76 72 68 69 65 62 45 43 41
65 59 54 62 56 51 39 36 33
57 50 45 56 49 43 34 30 27
50 43 37 51 43 37 30 26 23
44 37 31 47 38 32 27 22 19
39 32 27 43 34 28 24 20 16
35 28 23 40 30 24 21 17 14
32 25 20 37 27 22 19 15 12
29 22 17 34 25 19 17 13 11
26 20 15 32 22 17 16 12 9
1900
3800
5700
180˚ 165˚ 150˚
135˚
120˚
105˚
90˚
90 1883 1213 20 24 12
95 2870 2015 68 28 10
105 4218 2953 228 44 20
115 4177 2772 388 241 80
125 3679 2474 542 430 321
135 3074 2080 681 598 522
145 2436 1768 793 672 683
155 1892 1474 880 766 743
165 1437 1262 936 850 824
175 1091 1064 961 933 913
180 972 972 972 972 972
86 86 86 75 75 75 53 53 53
72 68 64 66 62 59 43 41 39
62 56 52 59 54 49 37 34 31
54 48 42 54 47 41 32 29 26
48 41 35 49 41 35 29 25 22
42 35 30 45 36 30 25 21 18
38 31 25 41 32 26 23 19 16
34 27 22 38 29 23 20 16 13
30 24 19 35 26 20 18 14 12
27 21 17 32 24 18 17 13 10
25 19 15 30 21 16 15 11 9
211 79 52 52 79 211
96 99 96 96 99 96
Quick Calculators and Ceiling Brightness
1Lt, 1 Fixture, 1 Wall, 10" (0.25m) from Ceiling
Distance from wall
0' 2' 4' 6' 8' 10' 12' 14'
Distance From Ceiling
0 0.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m
10" (0.25m)
7'6" (2.29m)
10'0" (3.05m)
131 43 25 18 16 15
67 63 53 42 33 26
197 63 32 22 17 16
72 68 57 44 34 27
1Lt, 2 Fixtures, 2 Walls, 10" (0.25m) from Ceiling
Distance from wall
0' 2' 4' 6' 8' 10' 12' 14'
Distance From Ceiling
0 0.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m
10" (0.25m)
7'6" (2.29m)
10'0" (3.05m)
1Lt, 1 Fixture, 1 Wall, 14" (0.35m) from Ceiling
Distance from wall
0' 2' 4' 6' 8' 10' 12' 14'
Distance From Ceiling
0 0.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m
14" (0.35m)
7'6" (2.29m)
10'0" (3.05m)
1Lt, 2 Fixtures, 2 Walls, 14" (0.35m) from Ceiling
Distance from wall
0' 2' 4' 6' 8' 10' 12' 14'
Distance From Ceiling
0 0.61m 1.22m 1.83m 2.44m 3.05m 3.66m 4.27m
14" (0.35m)
7'6" (2.29m)
10'0" (3.05m)
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. 54 watt T5HO lamp.
144 58 44 44 58 144
92 94 93 93 93 92
Candela Distribution
0.0 45.0 90.0 135.0 180.0
Coefficients of Utilization (%)
50 30 10 70 50 30 50 30 10
0
1
2
3
4
5
6
7
8
9
10
80
RCR
70 50
Based on a floor reflectance of 0.2
Ceiling:
Wall:
Distribution Summary
Zone Lumens % Barelamp %Luminaire
7.77.34210-90
92.386.4501290-180
100.093.754330-180
Candlepower Curve
Efficiency: 93.7% Max. Candela/Angle: 2871/110˚
Max. Candela/Angle: 4368/110˚
Report Number: 9901100 Lamp: (2) F28T5 Lumens: 5800
Candela Distribution
0.0 45.0 90.0 135.0 180.0
Coefficients of Utilization (%)
50 30 10 70 50 30 50 30 10
0
1
2
3
4
5
6
7
8
9
10
80
RCR
70 50
Based on a floor reflectance of 0.2
Ceiling:
Wall:
Distribution Summary
Zone Lumens % Barelamp %Luminaire
7.97.16560-90
92.182.2764690-180
100.089.383020-180
Candlepower Curve
Efficiency: 89.4%Report Number: 9901103 Lamp: (2) F54T5 Lumens: 9300