Lytecaster
®
Recessed Downlighting 2095
Page 2 of 2 3 3/4" Aperture Deep Anodized Wall Washer 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.
© 2006 Genlyte Group LLC • E0906
Job Information Type:
8 4 8
15 15 15
12 12 12
9 9 9
6 6 6
4 4 4
3 3 3
2 2 2
2 2 2
Candlepower Curve
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.
LIGHTING DATA
EXAMPLE: With clear Alzak
®
and
60W BT15 units, located 18" from wall
and 2' on center, (matching downlights
2' on center), the illumination on the
wall 3' down from the ceiling is 12 f.c.
beneath and 12 f.c. between fixtures.
Downlight
2
2
18"
3
12 f.c.
12 f.c.
DOWNLIGHT SPACING RATIO = 1.2
Report 1266FR
Efficiency = 33.6%
Down Wall
COEFFICIENTS OF UTILIZATION
% EFFECTIVE CEILING CAVITY REFLECTANCE
80 70 50 30 10 0
0
.32
.29
.27
.25
.23
.21
.19
.18
.16
.15
ROOM CAVITY RATIO
20% FLOOR CAVITY REFLECTANCE
50 30 10 50 30 10 50 30 10 50 30 10 50 30 10
1 .37 .37 .36 .37 .36 .35 .35 .35 .34 .34 .34 .33 .33 .33 .32
2 .35 .33 .32 .34 .33 .32 .33 .32 .31 .32 .31 .31 .31 .31 .30
3 .32 .31 .29 .32 .30 .29 .31 .30 .29 .30 .29 .28 .28 .28 .28
4 .30 .28 .27 .30 .28 .27 .29 .27 .26 .28 .27 .26 .28 .27 .26
5 .28 .26 .24 .28 .26 .24 .27 .25 .24 .26 .25 .24 .26 .25 .24
6 .26 .24 .22 .26 .24 .22 .25 .23 .22 .25 .23 .22 .24 .23 .22
7 .24 .22 .20 .24 .22 .20 .23 .21 .20 .23 .21 .20 .22 .21 .20
8 .22 .20 .19 .22 .20 .18 .21 .20 .18 .21 .19 .18 .21 .19 .18
9 .20 .18 .17 .20 .18 .17 .20 .18 .17 .20 .18 .17 .19 .18 .17
10 .19 .17 .15 .19 .17 .15 .18 .17 .15 .18 .16 .18 .18 .16 .15
DISTANCE FROM CEILING, FT.
UNITS 18 INCHES FROM WALL
18"
24"
30”
8 2 8
13 11 13
10 10 10
7 7 7
5 5 5
4 4 4
3 3 3
2 2 2
2 2 2
9 7 9
20 20 20
16 16 16
11 11 11
8 8 8
5 5 5
4 4 4
3 3 3
2 2 2
1
2
3
4
5
6
7
8
9
Footcandle values are averaged and rounded off and are based on a minimum of five units.
Footcandles on Wall From Multiple Units 60W BT15 Clear Alzak®
Lighting Data
% WALL REFLECTANCE