AIS-70-MH-G12-W
70-Watt Coated Ceramic Metal Halide 12" Glass
Refractor, Wide Distribution, 6,000-Lumen Lamps
Coefficients Of Utilization
Effective floor cavity reflectance 20%
rc 80% 70% 50% 30% 10% 0%
rw 70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
RCR
188 83 79 75 84 79 76 72 73 70 67 66 64 62 61 59 57 54
279 72 66 61 76 69 63 59 63 59 55 58 54 51 53 50 47 45
372 63 56 50 69 60 54 48 55 50 45 51 46 42 46 43 40 37
466 55 48 42 63 53 46 41 49 43 38 45 40 36 41 37 34 31
560 49 41 35 57 47 40 35 43 37 33 40 35 31 37 32 29 27
655 44 36 30 53 42 35 30 39 33 28 36 31 27 33 28 25 23
751 39 32 26 48 38 31 26 35 29 24 32 27 23 30 25 22 20
847 36 28 23 45 34 27 23 32 26 21 29 24 20 27 23 19 17
944 32 25 20 42 31 24 20 29 23 19 27 22 18 25 20 17 15
10 41 30 23 18 39 28 22 18 26 21 17 25 20 16 23 18 15 14
Candlepower
Degree CP
0 954
5 951
15 881
25 943
35 1150
45 1307
55 727
65 336
75 291
85 287
90 274
95 267
105 255
115 222
125 156
135 66
145 27
155 26
Spacing Criterion 1.8
Zone %Lamp Zone %Lamp
0-30 13.0 0-90 68.6
0-40 25.1 90-180 16.9
0-60 52.6 Total 85.5
AIS-142-CF-G12-M
42-Watt CF42DT/E/841, 12" Glass Refractor,
Medium Distribution, 3,200-Lumen Lamps
Coefficients Of Utilization
Effective floor cavity reflectance 20%
rc 80% 70% 50% 30% 10% 0%
rw 70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
RCR
187 82 77 73 82 78 74 70 70 67 64 63 60 58 56 54 52 49
278 70 63 57 74 66 60 55 59 54 50 53 49 46 48 44 42 38
370 60 52 46 66 57 50 44 51 45 40 46 41 37 41 37 34 31
464 52 44 37 60 50 42 36 45 38 33 40 35 30 36 31 28 25
558 46 37 31 54 44 36 30 39 33 28 35 30 25 31 27 23 21
653 41 32 26 50 39 31 25 35 28 23 31 26 22 28 23 20 17
749 36 28 23 46 34 27 22 31 25 20 28 23 18 25 20 17 15
845 33 25 20 42 31 24 19 28 22 17 25 20 16 23 18 15 13
942 30 22 17 39 28 21 16 26 19 15 23 18 14 21 16 13 11
10 39 27 20 15 37 26 19 14 23 17 13 21 16 12 19 15 11 10
Candlepower
Degree CP
0 158
5 176
15 275
25 350
35 450
45 481
55 397
65 304
75 201
85 185
90 181
95 169
105 153
115 129
125 96
135 55
145 29
155 21
Spacing Criterion 2.8
Zone %Lamp Zone %Lamp
0-30 8.9 0-90 65.4
0-40 18.2 90-180 21.7
0-60 42.3 Total 87.1
PHOTOMETRICS – SMALL
AIS-242-CF-AC12-M
42-Watt CF42TTT/E/841, 12" Clear Acrylic Refractor,
Medium Distribution, 3,200-Lumen Lamps
Coefficients Of Utilization
Effective floor cavity reflectance 20%
rc 80% 70% 50% 30% 10% 0%
rw 70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
RCR
185 80 75 70 80 75 70 66 66 62 59 57 55 52 50 48 46 42
276 67 60 54 71 63 57 51 55 50 46 48 44 40 41 38 35 32
368 58 50 43 63 54 47 41 47 41 36 41 36 32 35 31 28 25
462 50 42 35 57 47 39 33 41 35 30 36 30 26 30 26 23 20
556 44 35 29 52 41 33 28 36 30 25 31 26 22 27 22 19 16
651 39 31 25 48 36 29 23 32 26 21 28 22 18 24 19 16 14
747 35 27 21 44 33 25 20 29 22 18 25 20 16 21 17 14 11
844 31 23 18 41 29 22 17 26 20 15 22 17 14 19 15 12 10
940 28 21 16 38 27 20 15 23 18 13 20 15 12 18 13 10 8
10 38 26 19 14 35 24 18 13 21 16 12 19 14 10 16 12 9 7
Candlepower
Degree CP
0 385
5 388
15 409
25 521
35 783
45 915
55 904
65 782
75 611
85 416
90 402
95 365
105 327
115 308
125 289
135 262
145 234
155 178
Spacing Criterion 2.4
Zone %Lamp Zone %Lamp
0-30 6.4 0-90 58.7
0-40 13.5 90-180 28.7
0-60 33.7 Total 87.4