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SPACING RATIO = 0.9
RECESSED LYTECASTER DOWNLIGHT,
5 1/2" DIA. APERTURE, BASIC PERMA-WHITE
ONE PHILIPS 85W BR30 FLOOD LAMP,. LUMEN RATING = 925 LMS.
180
150
120
ACROSS
45
ALONG
90
200
60
400
600
0
30
DATE: DATE APRIL 10, 1997
PREPARED FOR:
LIGHTOLIER, FALL RIVER, MA
80
70
% WALL REFLECTANCE
50
30
10
50 30 10 50 30
1
1.09 1.06 1.04 1.07 1.04 1.02 1.03 1.01 .99 .99 .97 .96 .96 .94 .93 .91
2
1.00 .96 .92 .99 .94 .91 .95 .92 .89 .92 .90 .87 .90 .87 .85 .83
3
.92 .87 .82 .91 .86 .82 .88 .84 .80 .86 .82 .79 .83 .80 .78 .76
4
.85 .79 .74 .84 .79 .74 .82 .77 .73 .80 .76 .72 .78 .74 .71 .70
5
.79 .72 .67 .78 .71 .67 .76 .70 .66 .74 .69 .66 .73 .69 .65 .64
6
.73 .66 .61 .72 .66 .61 .70 .65 .61 .69 .64 .60 .68 .63 .60 .58
7
.67 .60 .56 .66 .60 .55 .65 .59 .55 .63 .58 .54 .62 .58 .54 .53
8
.62 .55 .51 .61 .55 .50 .60 .54 .50 .59 .54 .50 .58 .53 .50 .48
9
.57 .51 .46 .57 .50 .46 .56 .50 .46 .55 .49 .45 .54 .49 .54 .44
10
.53 .46 .42 .52 .46 .42 .51 .46 .42 .51 .45 .41 .50 .45 .41 .40
20% FLOOR CAVITY REFLECTANCE
Conversion Factors: 2 Lt. 13W Quad Tube, C. U. x 0.40, 1 Lt. 13W Qyad Tube, C. U. x
0.45. 75W A19, C. U. x 0.50.
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.
Lytecaster
ANGLE
MEAN CP
LUMENS
0
678
5
670
36
10
642
15
582
164
20
502
25
428
200
30
369
35
322
203
40
281
45
223
167
50
136
55
70
71
60
42
65
30
31
70
23
75
16
17
80
9
85
5
6
90
2
ZONE
LUMENS
% LAMPS
% LUMINAIRE
0-30
426
46.14
46.29
0-40
629
68.09
68.32
0-60
868
93.89
94.20
0-90
922
99.68
100.00
40-90
292
31.58
31.68
60-90
53
5.78
5.80
90-180
0
.00
.00
0-180
922
99.68
100.00
** EFFICIENCY = 99.7% **
50
30
10
10
50 30 10
50
30 10
0
Recessed Downlighting
®
6 3/4" Aperture Basic White Reflector Reflector Trim
60
50
40
30
20
10
10
20
30
AREA PER FIXTURE IN SQUARE FEET
3
4
5
CENTER TO CENTER DISTANCE OF FIXTURES IN FEET
Job Information
Lightolier
a Genlyte company
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 • G0711
1170M1
ROOM SURFACE REFLECTANCES:
80% Ceiling; 60% Walls; 20% Floor
925 Lumens Per Lamp
Large Room (RCR=1)
Small Room (RCR=5)
40
50
60
70
80
6
7
8
9
Type:
www.lightolier.com
90
10
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