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PFO LIghting Products - Page 16

   

PFO Lighting

28" ALUMINUM LOW BAY

28" ALUMINUM LOW BAY

Lamp:M400/U

Lumens:36000

Input Wattage:460

Spacing Criteria:1.8

Candle Power
DEG CP DEG CP
0 4755 50 7522
5 4853 55 7366
10 5134 60 6475
15 5290 65 4399
20 5204 70 3124
25 5205 75 2267
30 5193 80 1536
35 5250 85 989
40 5562 90 650
45 6288    

COEFFICIENTS OF UTILIZATION -Zonal Cavity Method
Floor Refl(%)=20
Ceiling Refl(%) 80 70 50 30
Wall Refl(%) 70 50 30 10 70 50 30 10 50 30 10 50 30 10
RCR                            
1 89 84 80 77 86 82 78 75 78 75 72 74 72 69
2 80 73 66 61 77 71 65 60 67 62 58 64 60 57
3 72 63 55 49 70 61 54 49 58 52 47 55 50 46
4 65 55 47 41 63 53 46 40 51 44 39 48 43 39
5 59 48 40 34 57 46 39 33 44 38 33 42 36 32
6 54 42 33 28 52 41 33 27 39 32 27 37 31 26
7 49 36 28 23 47 35 28 22 34 27 22 32 26 22
8 45 32 25 19 43 32 24 19 30 23 19 29 23 18
9 42 29 22 17 40 29 22 17 28 21 16 26 20 16
10 39 26 19 14 37 26 19 14 25 18 14 24 18 14
RCR = 5 * H * (Room Length + Room Width)

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

     (Room Length * Room Width)



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