Alter
Tilelyte
QVD
2 x 2
Page 2 of 2
2’ x 2’ Recessed Direct/Indirect Fluorescent
ZONE
DEG
ALONG 22.5
45
67.5
ACROSS
0
1856
1856
1856
1856
1856
5
1846
1845
1842
1847
1854
10
1814
1812
1818
1816
1820
15
1762
1760
1759
1773
1767
20
1685
1684
1695
1694
1694
25
1598
1598
1591
1596
1599
30
1481
1484
1484
1484
1489
35
1363
1361
1364
1369
1369
40
1234
1239
1234
1236
1236
45
1090
1099
1091
1091
1103
50
941
948
941
941
949
55
798
795
799
807
806
60
654
651
652
659
655
65
514
507
513
505
509
70
376
371
369
372
382
75
242
240
241
240
244
80
125
121
126
126
123
85
35
34
25
31
26
90
0
0
0
0
0
COEFFICIENTS OF UTILIZATION
ZONAL CAVITY METHOD * EFFECTIVE FLOOR CAVITY REFLECTANCE = .20
80
70
50
Wall Reflectance
70 50 30 10 70 50
30 10 50 30
10
0 .58 .58 .58 .58 .57 .57 .57 .57 .54 .54 .54
1 .54 .52 .50 .48 .53 .51 .49 .48 .49 .47 .46
2 .50 .46 .43 .41 .49 .45 .43 .40 .44 .41 .39
3 .46 .41 .38 .35 .45 .40 .37 .35 .39 .36 .34
4 .42 .37 .33 .30 .41 .36 .33 .30 .35 .32 .30
5 .39 .33 .29 .26 .38 .33 .29 .26 .32 .28 .26
6 .36 .30 .26 .23 .35 .30 .26 .23 .29 .25 .23
7 .33 .27 .23 .20 .32 .27 .23 .20 .26 .22 .20
8 .31 .25 .21 .18 .30 .24 .20 .18 .24 .20 .18
9 .29 .22 .18 .16 .28 .22 .18 .16 .21 .18 .16
10 .27 .20 .17 .14 .26 .20 .17 .14 .20 .16 .14
DETERMINED IN ACCORDANCE WITH CURRENT IES PUBLISHED PROCEDURES
LUMINAIRE INPUT WATTS = 99.8
Room Cavity Ratio
ZONE
LUMENS
% LAMP
%LUMINAIRE
0-30
1406
14.89
30.45
0-40
2258
23.90
48.88
0-60
3812
40.35
82.51
0-90
4620
48.90
100.00
40-90
2362
25.00
51.12
60-90
808
8.55
17.49
90-180
0
.00
.00
0-180
4620
48.90
100.00
DISTRIBUTION
CANDLEPOWER CURVE 3FT
Performance
CANDLEPOWER
REPORT NO: LSCA677
CAT. NO: QVD2GGLOP3FT120X3
3 40W TT5 Compact Fluorescent Lamps at 3150 lumens.
Efficiency: 48.9%
Candela at Nadir: 1856cd
0°
90°
90°
180°
800
1600
2400
ZONE
DEG
ALONG 22.5
45
67.5
ACROSS
0
1315
1315
1315
1315
1315
5
1305
1303
1316
1316
1317
10
1287
1284
1286
1291
1291
15
1249
1248
1249
1251
1252
20
1200
1202
1201
1200
1206
25
1135
1132
1137
1135
1148
30
1053
1065
1060
1061
1064
35
970
975
971
980
979
40
878
882
881
891
890
45
785
779
784
783
786
50
677
680
674
683
681
55
576
572
571
578
580
60
469
477
474
477
478
65
375
372
371
370
373
70
277
276
270
273
280
75
184
182
178
181
183
80
96
92
91
96
93
85
31
20
20
20
21
90
0
0
0
0
0
COEFFICIENTS OF UTILIZATION
ZONAL CAVITY METHOD * EFFECTIVE FLOOR CAVITY REFLECTANCE = .20
80
70
50
Wall Reflectance
70 50 30 10 70 50
30 10 50 30
10
0 .56 .56 .56 .56 .55 .55 .55 .55 .52 .52 .52
1 .52 .50 .48 .47 .51 .49 .47 .46 .47 .46 .44
2 .48 .44 .41 .39 .47 .43 .41 .38 .42 .40 .38
3 .44 .39 .36 .33 .43 .39 .35 .33 .37 .35 .32
4 .40 .35 .31 .28 .39 .35 .31 .28 .33 .30 .28
5 .37 .31 .27 .24 .36 .31 .27 .24 .30 .26 .24
6 .34 .28 .24 .21 .33 .28 .24 .21 .27 .23 .21
7 .31 .25 .21 .19 .31 .25 .21 .18 .24 .21 .18
8 .29 .23 .19 .16 .28 .22 .19 .16 .22 .18 .16
9 .27 .21 .17 .14 .26 .20 .17 .14 .20 .16 .14
10 .25 .19 .15 .12 .24 .18 .15 .12 .18 .15 .12
DETERMINED IN ACCORDANCE WITH CURRENT IES PUBLISHED PROCEDURES
LUMINAIRE INPUT WATTS = 95.7
Room Cavity Ratio
ZONE
LUMENS
% LAMP
%LUMINAIRE
0-30
1000
14.21
30.14
0-40
1608
22.84
48.46
0-60
2725
38.72
82.14
0-90
3318
47.14
100.00
40-90
1710
24.30
51.54
60-90
592
8.42
17.86
90-180
0
.00
.00
0-180
3318
47.14
100.00
DISTRIBUTION
CANDLEPOWER CURVE 424
Performance
CANDLEPOWER
REPORT NO: LSCA934
CAT. NO: QVD2GGLOP424120PG
4 24W T5HO Fluorescent Lamps at 1760 lumens.
Efficiency: 47.1%
Candela at Nadir: 1315cd
0°
90°
90°
180°
400
800
1200
Job Information
Type:
For Factory Technical Information: (978) 657-7600
•
Fax (978) 658-0595
11/10
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.
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Section 5/Folio L10-10 Rev. A
