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  Prudential Lighting   Recessed  

Recessed - Page 9

   

Recessed

PHOTOMETRIC DATA

P-2011-04RS-PRA (1' x4' 1 -Lamp)

COEFFICIENTS OF UTILIZATION
% CEILING REFLECTANCE 80 70 50
% WALL REFLECTANCE 70 50 30 70 50 30 50 30 10
ROOM CAVITY RATIO FLOOR CAVITY REFLECTANCE, 20%
0 .89 .89 .89 .87 .87 .87 .83 .83 .83
1 .83 .80 .77 .81 .78 .76 .75 .73 .71
2 .77 .72 .67 .75 .70 .66 .68 .64 .62
3 .71 .72 .67 .69 .63 .58 .61 .57 .54
4 .66 .58 .52 .64 .57 .52 .55 .51 .47
5 .61 .52 .46 .59 .51 .45 .50 .45 .41
6 .56 .47 .41 .55 .46 .41 .45 .40 .36
7 .52 .43 .37 .51 .42 .36 .41 .36 .32
8 .48 .38 .32 .47 .38 .32 .37 .32 .26
9 .44 .35 .29 .43 .34 .29 .33 .28 .24
10 .41 .32 .26 .40 .31 .26 .30 .25 .22

P-2022-04RS-PRA (2'x4' 2-Lamp)

COEFFICIENTS OF UTILIZATION
80 70 50
70 50 30 70 50 30 50 30 10
FLOOR CAVITY REFLECTANCE, 20%
.91 .91 .90 .89 .89 .89 .85 .85 .75
.85 .82 .79 .83 .80 .78 .77 .75 .73
.79 .74 .69 .77 .72 .68 .69 .66 .63
.73 .66 .61 .71 .65 .60 .63 .59 .56
.68 .60 .54 .66 .59 .54 .57 .52 .49
.62 .54 .48 .61 .53 .47 .51 .46 .43
.58 .49 .43 .57 .48 .42 .47 .42 .38
.54 .44 .38 .53 .44 .38 .43 .37 .34
.50 .40 .34 .49 .39 .34 .38 .33 .30
.46 .36 .30 .45 .36 .30 .35 .30 .26
.42 .33 .27 .42 .32 .27 .32 .27 .23

DOOR FRAME STYLES AND COLORS

Style "R" -1/2" deep regress.

(Aluminum)

Frames available in White

(W) or Black (B).

EX: Regressed White "RW".

 Style "S" -flush frame.

(Aluminum)

Style "D" (not shown)-

flush frame. (Steel)

"SW" White

"SB" Black

CEILING SYSTEMS (Specify Mounting Style)

X1 (Exposed T-bar) X4A ("C" Channel)

X4B ("C" Channel)

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

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

INSTALLATION

BASIC UNIT SIZES

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.

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

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



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