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  Prudential Lighting   Recessed  

Recessed - Page 11

   

Recessed

PHOTOMETRIC DATA

P-2312-04RS-PRA (1' x4' 2 -Lamp)

COEFFICIENTS OF UTILIZATION
% CEILING REFLECTANCE 80 50
% WALL REFLECTANCE 50 30 10 50 30 10
ROOM CAVITY RATIO FLOOR CAVITY REFLECTANCE, 20%
1 .64 .62 .60 .60 .58 .57
2 .57 .54 .51 .54 .51 .49
3 .51 .47 .44 .49 .46 .43
4 .46 .42 .38 .44 .41 .38
5 .42 .37 .33 .40 .36 .33
6 .38 .33 .30 .36 .32 .29
7 .34 .29 .26 .33 .29 .26
8 .31 .26 .23 .29 .25 .23
9 .28 .23 .20 .27 .23 .20
10 .25 .21 .18 .24 .20 .18

P-2324-04RS-PRA (2'x4' 4-Lamp)

COEFFICIENTS OF UTILIZATION
80 50
50 30 10 50 30 10
FLOOR CAVITY REFLECTANCE, 20%
.70 .68 .66 .66 .64 .62
.62 .59 .56 .59 .56 .54
.56 .52 .49 .54 .50 .48
.51 .46 .42 .49 .44 .41
.46 .40 .36 .43 .39 .36
.41 .36 .32 .39 .35 .32
.37 .32 .29 .36 .31 .28
.34 .29 .24 .32 .28 .24
.31 .25 .21 .29 .24 .21
.28 .22 .19 .27 .22 .19

CEILING SYSTEMS (Specify Mounting Style)

X-1 (Exposed T-bar) X-2B (Plaster)

 

X-3B (Wood Joist)

The above mounting styles show the trim details for the ceiling systems indicated. Mounting accessories and ceiling details are shown on pages 21-26.

X-4B ("C" Channel) X-54 (Concealed T-bar)

Fixture Body Flange finished in white enamel on mounting styles X-2, X-3 and X-4.

INSTALLATION

For X-2, X-3 and X-4 Ceiling types only

For X-1 and X-5 Ceiling types only

We reserve the right to change details of design, materials or finish in any way that will not alter appearance, reduce function or performance.

FRAMING DIMENSIONS (SINGLE UNITS)*
Nominal Size Width Length
1' x 4' 12-1/8" 48-1/2"
2' x 2' 24-1/8" 24-1/2"
2' x 4' 24-1/8" 48-1/2"

*Rows - total fixture length plus 1-inch.

1774 E. 21st ST. LOS ANGELES, CA 90058 213.746.0360 Fax: 213.746.
 



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