Lytecaster
®
Recessed Downlighting
1071
Page 2 of 2
5" Aperture Basic White Reflector Reflector Trim
Lightolier
a Genlyte company
www.lightolier.com
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.
© 2011 Genlyte Group LLC • K1111
Job Information
Type:
To convert lighting data for a lower wattage incandescent lamp of the
same type
,
multiply the footcandle (or candlepower) values by the ratio of the lumens of the
two lamps. The coefficients of utilization remain the same.
Use quick calculator chart to determine the spacing of 100 Watt BR30 FL units for
a desired level of illumination. Conversion Factor: 75W A19, F.C. x 0.85. 1 Lt 13W
Quad Tube, F.C. x 0.6.
Spacing Ratio = 0.9
Coefficients of Utilization
CERTIFIED TEST REPORT NO. 0275FR
COMPUTED BY LSI PROGRAM **TEST LITE**
RECESSED OPEN LYTECASTER DOWNLIGHT
5 1/16" DIA. APERTURE, BASIC WHITE REFLECTOR
ONE 75W BR30 FLOOD LAMP. LUMEN RATING = 770LMS
CANDLEPOWER SUMMARY
ANGLE
MEAN CP LUMENS
0
447
5
438
42
10
420
15
386
108
20
339
25
293
136
30
254
35
225
142
40
200
45
164
122
50
104
55
69
67
60
56
65
45
44
70
33
75
21
23
80
11
85
5
6
90
1
ZONAL LUMENS AND PERCENTAGES
ZONE
LUMENS % LAMPS % LUMINAIRE
0 –30
286
37.20
41.49
0–40
428
55.63
62.04
0–60
617
80.15
89.40
0–90
690
89.66
100.00
40–90
262
34.03
3796.00
60–90
73
9.51
10.60
90–180
0
.00
.00
0–180
690
89.66
100.00
**EFFICIENCY = 89.7% **
DATE: APRIL 3,1997
PREPARED FOR:
LIGHTOLIER, FALL RIVER, MA
80 70 50 30 10
% WALL REFLECTANCE
50 30 10 50 30 10 50 30 10 50 30 10 50 30 10 0
1 .97 .94 .92 .95 .93. .90 .91 .89 .88 .88 .89 .85 .85 .84 .82 .81
2 .88 .84 .80 .87 .83 .79 .84 .80 .77 .81 .78 .76 .79 .76 .74 .73
3 .80 .75 .71 .79 .74 .70 .77 .72 .69 .74 .71 .68 .72 .69 .67 .65
4 .74 .68 .63 .73 .67 .63 .71 .66 .62 .69 .65 .61 .67 .63 .61 .59
5 .68 .61 .56 .67 .61 .56 .65 .60 .56 .63 .59 .55 .62 .58 .55 .53
6 .62 .56 .61 .61 .55 .51 .60 .54 .50 .58 .54 .50 .57 53 .50 .48
7 .57 .50 .46 .56 .50 .46 .55 .49 .45 .54 .49 .45 .53 .48 45 .43
8 .52 .46 .42 .52 .46 .41 .51 .45 .41 .50 .45 .41 .49 .44 .41 .39
9 .48 .41 .37 .48 .42 .37 .47 .41 .37 .46 .41 .37 .34 .40 .37 .35
10 .45 .38 .40 .44 .38 .34 .43 .38 .34 .43 .37 .34 .42 .37 .34 .32
20% FLOOR CAVITY REFLECTANCE
ROOM CA
VITY RA
TIO
Conversion Factor: 75W A19, C.U. x 0.5. 1 Lt. 13W Quad Tube, C.U. x 0.5.
