Lytecaster®Recessed Downlighting 1195
Page 2 of 2 6 3/4" Aperture Deep Wall Washer Reflector Trim
Job Information Type:
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.
© 2007 Genlyte Group LLC • I1007
Candlepower Curve
Lighting Data
Example: With clear Alzak®and 150W A-21
units, located 3’ from wall and 5’ on center,
(matching downlights 5’ on center), the
illumination on the wall 3’ down from the
ceiling is 19 f.c. beneath and 13 f.c. between
fixtures.
Lighting Data
Example: With clear Alzak®and 32W TTT units,
located 3’ from wall and 5’ on center, (matching
downlights 5’ on center), the illumination on the
wall 3’ down from the ceiling is 17 f.c. beneath
and 12 f.c. between fixtures.
DISTANCE FROM CEILING, FT.
UNITS 2 FEET FROM WALL
Footcandle values are averaged and rounded off and are based on a minimum of
five units.
Footcandle values are averaged and rounded off and are based on a minimum of
five units.
2’
DOWNLIGHT SPACING RATIO = 1.2
Report 1198FR
Efficiency = 55.0%
Footcandles on Wall From Multiple Units: 32W TTT Specular Clear
Footcandles on Wall From Multiple Units: 32W TTT Specular Clear
Lighting Data
Down Wall
DOWNLIGHT SPACING RATIO = 1.1
COEFFICIENTS OF UTILIZATION
% EFFECTIVE CEILING CAVITY REFLECTANCE
80 70 50 30 10 0
0
.50
.45
.41
.37
.33
.29
.26
.23
.21
.19
ROOM CAVITY RATIO
20% FLOOR CAVITY REFLECTANCE
50 30 10 50 30 10 50 30 10 50 30 10 50 30 10
1 .61 .59 .57 .60 .58 .56 .57 .56 .55 .55 .54 .53 .53 .52 .51
2 .55 .52 .50 .54 .52 .49 .52 .50 .48 .51 .49 .47 .49 .48 .46
3 .50 .47 .44 .49 .46 .44 .48 .45 .43 .46 .44 .42 .45 .43 .42
4 .46 .42 .39 .45 .42 .39 .44 .41 .39 .43 .40 .38 .42 .39 .38
5 .42 .38 .35 .41 .38 .35 .40 .37 .34 .39 .36 .34 .38 .36 .34
6 .38 .34 .31 .38 .34 31 .37 .34 .31 .36 .33 .31 .35 .32 .30
7 .35 .31 .26 .34 .31 .28 .34 .30 .28 .33 .30 .27 .32 .29 .27
8 .32 .28 .25 .31 .28 .25 .31 .27 .25 .30 .27 .25 .30 .27 .24
9 .29 .25 .22 .29 .25 .22 .28 .25 .22 .28 .24 .22 .27 .24 .22
10 .27 .23 .20 .26 .23 .20 .26 .22 .20 .25 .22 .20 .25 .22 .20
% WALL REFLECTANCE
FOR 26WTTT, MULTIPLY C.U.’S BY 1.15.
COEFFICIENTS OF UTILIZATION
% EFFECTIVE CEILING CAVITY REFLECTANCE
80 70 50 30 10 0
0
.51
.47
.43
.39
.36
.33
.30
.28
.25
.23
ROOM CAVITY RATIO
20% FLOOR CAVITY REFLECTANCE
50 30 10 50 30 10 50 30 10 50 30 10 50 30 10
1 .60 .59 .58 .59 .58 .57 .57 .56 .55 .55 .54 .53 .53 .52 .52
2 .56 .54 .51 .55 .53 .51 .53 .51 .50 .51 .50 .49 .50 .49 .48
3 .51 .49 .46 .51 .48 .46 .49 .47 .45 .48 .46 .44 .47 .45 .44
4 .48 .45 .42 .47 .44 .42 .46 .43 .41 .45 .43 .41 .44 .42 .40
5 .44 .41 .38 .44 .40 .38 .43 .40 .38 .42 .39 .37 .41 .39 .37
6 .41 .37 .35 .41 .37 .35 .40 .37 .34 .39 .36 .34 .38 .36 .34
7 .38 .34 .32 .37 .34 .31 .37 .34 .31 .36 .33 .31 .35 .33 .31
8 .35 .31 .29 .35 .31 .29 .34 .31 .29 .33 .31 .29 .33 .30 .28
9 .32 .29 .26 .32 .29 .26 .31 .28 .26 .31 .28 .26 .30 .28 .26
10 .30 .26 .24 .30 .26 .24 .29 .26 .24 .29 .26 .24 .28 .26 .24
% WALL REFLECTANCE
FOR 100W A19, MULTIPLY C.U.’s BY 1.1.
3’ 4’
32 16 32
34 20 34
23 21 23
16 16 16
11 13 12
9 10 9
7 7 7
6 6 6
5 5 5
36 28 36
39 31 39
29 29 29
21 22 21
15 16 15
12 12 12
9 9 9
7 7 7
6 6 6
48 46 48
54 51 54
43 43 43
31 32 31
22 23 22
16 16 16
12 12 12
9 9 9
7 7 7
1
2
3
4
5
6
7
8
9
DISTANCE FROM CEILING, FT.
UNITS 3 FEET FROM WALL
3’ 5’
11 8 11
17 12 17
17 12 17
14 12 14
11 11 11
9 9 9
7 8 7
6 6 6
5 5 5
4’
12 11 12
19 17 19
19 16 19
16 16 16
13 14 13
11 11 11
9 9 9
7 8 7
6 6 6
16 15 16
24 23 24
24 23 24
21 21 21
18 18 18
14 15 14
11 12 11
9 9 9
8 8 8
1
2
3
4
5
6
7
8
9
DISTANCE FROM CEILING, FT.
UNITS 2 FEET FROM WALL
2’
Footcandles on Wall From Multiple Units: 150W A-21 Specular Clear
3’ 4’
30 11 30
40 21 40
28 26 28
18 23 18
14 17 14
12 13 12
10 10 10
8 8 8
7 7 7
32 22 32
44 35 44
33 30 33
26 29 26
20 21 20
16 16 16
13 13 13
10 10 10
9 9 9
41 39 41
60 60 60
53 54 53
40 41 40
30 30 30
23 23 23
17 18 17
14 14 14
11 11 11
1
2
3
4
5
6
7
8
9
DISTANCE FROM CEILING, FT.
UNITS 3 FEET FROM WALL
3’
Footcandles on Wall From Multiple Units: 150W A-21 Specular Clear
4’ 5’
9 5 9
17 11 17
19 13 19
16 15 16
13 15 13
10 12 11
9 10 9
8 8 8
7 7 7
11 10 11
23 23 23
27 27 27
25 26 25
22 22 22
18 19 18
15 15 15
13 13 13
11 11 11
1
2
3
4
5
6
7
8
9
Candlepower Curve
Report 1227FR
Efficiency = 56.0%
Down Wall
10 7 10
18 16 18
22 19 22
19 20 19
16 18 16
14 14 14
12 12 12
10 10 10
9 9 9
