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  PFO Lighting   PFO Lighting  

PFO LIghting Products - Page 32

   

PFO Lighting

8 X 8 SQUARE

8 X 8 SQUARE

Lamp: LU70

Lumens:6300

Input Wattage:88

Spacing Criteria:1.14

Candle Power
DEG. CP DEG. CP
0º 861 100º 532
10º 869 110º 351
20º 938 120º 207
30º 976 130º 117
40º 949 140º 71
50º 874 150º 41
60º 785 160º 9
70º 762 170º 0
80º 691 180º 0
90º 632    

COEFFICIENTS OF UTILIZATION - Zonal Cavity Method:
Floor Refl(%) = 20
Ceiling Refl(%) 80 70 50 30 10 0
Wall Refl(%) 70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
RCR                                           
0 92 92 92 92 88 88 88 88 81 81 81 74 74 74 68 68 68 67
1 83 79 76 73 79 76 73 70 69 67 65 63 61 60 58 56 55 52
2 75 68 63 58 71 65 60 56 60 56 52 55 51 48 50 47 45 42
3 68 60 53 48 65 57 51 47 53 48 44 48 44 41 44 41 38 36
4 63 53 46 41 60 51 45 40 47 42 37 43 39 35 40 36 33 31
5 58 48 41 36 55 46 40 35 43 37 33 39 35 31 36 32 29 27
6 54 44 37 32 51 42 36 31 39 33 29 36 31 28 33 29 26 24
7 50 40 33 29 48 39 32 28 36 30 27 33 29 25 31 27 24 22
8 47 37 30 26 45 36 30 25 33 28 24 31 26 23 29 25 22 20
9 45 34 28 24 43 33 27 23 31 26 22 29 25 21 27 23 21 19
10 42 32 26 22 40 31 26 22 29 24 21 27 23 20 26 22 19 18
 

RCR= 5* H* (Room Length + Room Width)

                -------------------------------------

           (Room Length * Room Width)



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