(P8043-21) Specification Sheet

P830-TG WITH P8043-22
Report No. 98259
No. Lamps: 1 Type Lamp: 50PAR20/NFL-SYLVANIA Total Lumens: 530
Fixture Efficiency: 94.4%
S/MH Ratio: 0.4
Single Fixture Data
Ceiling
Ht.(Ft.)
10% Values
Ft.-C Beam Dia.
Zero
Degrees
Ft.-C
50% Values
Ft.-C Beam Dia.
Ft.-C (Footcandles) are initial and measured 2'-6" from floor
16 1.0 12 10.4 5.2 6
14 1.4 10 14.4 7.2 5
12 2.1 8 21.1 10.5 4
10 3.4 7 33.8 16.9 3
8 6.3 5 62.9 31.4 2
Beam Angle - 47 Beam Angle - 23
Quick Calculator Charts
0 100 200 300 400 500
0
4
8
12
16
20
Initial Footcandles
2'6" from floor
Area per Fixture (sq. ft.)
Room Reflectances: 80% Ceiling, 50% Wall, 20% Floor
Ceiling Ht.= 9 ft.
Medium Room - RCR=5.0
120 to 200 square foot area
0 100 200 300 400 500
0
6
12
18
24
30
Initial Footcandles
2'6" from floor
Area per Fixture (sq. ft.)
Room Reflectances: 80% Ceiling, 50% Wall, 20% Floor
Ceiling Ht.= 10 ft.
Large Room - RCR=2.0
1500 to 2500 square foot area
5
15
25
35
45
55
65
75
85
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
DISTRIBUTION CURVE INTENSITY DATA
1902
1684
1175
678
365
207
123
73
38
16
8
5
4
2
0
0
0
0
0
70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
80 70 50 30 10 0
RW
RC
10
9
8
7
6
5
4
3
2
1
0
Effective Floor Cavity Reflectance 0.20
ZONAL CAVITY COEFFICIENTS OF UTILIZATION
112 112 112 112 110 110 110 110 105 105 105 100 100 100 96 96 96 94
108 106 104 102 106 104 102 101 100 99 97 97 96 95 93 93 92 90
104 100 97 94 102 99 96 93 96 93 91 93 91 89 90 89 88 86
100 95 91 88 98 94 90 88 92 89 86 89 87 85 87 85 84 82
96 91 87 83 95 90 86 83 88 84 82 86 83 81 84 82 80 79
93 87 82 79 92 86 82 79 84 81 78 83 80 77 81 79 77 76
90 83 79 75 89 82 78 75 81 77 75 80 77 74 79 76 74 73
87 80 75 72 86 79 75 72 78 74 72 77 74 71 76 73 71 70
84 77 72 69 83 76 72 69 75 72 69 75 71 69 74 71 68 67
81 74 70 67 80 74 70 67 73 69 67 72 69 66 71 68 66 65
79 72 67 65 78 71 67 64 71 67 64 70 67 64 69 66 64 63