(P8043-21) Specification Sheet

P830-TG WITH P8043-22
Report No. 98258
No. Lamps: 1 Type Lamp: 50PAR20/NFL-GE Total Lumens: 570
Fixture Efficiency: 98.2%
S/MH Ratio: 0.3
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 1.4 11 13.7 6.8 5
14 1.9 10 18.8 9.4 4
12 2.8 8 27.6 13.8 3
10 4.4 6 44.2 22.1 3
8 8.2 5 82.2 41.1 2
Beam Angle - 46 Beam Angle - 20
Quick Calculator Charts
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.= 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
2488
1991
1267
687
410
258
143
73
34
17
10
8
5
2
0
0
0
1
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
117 117 117 117 114 114 114 114 109 109 109 104 104 104 100 100 100 98
112 110 108 106 110 108 106 104 104 103 101 100 99 98 97 96 95 94
108 104 101 98 106 102 100 97 99 97 95 97 95 93 94 92 91 90
104 99 95 92 102 98 94 91 95 92 90 93 90 88 91 89 87 86
100 94 90 87 99 93 89 86 91 88 85 89 87 84 88 85 83 82
97 90 86 82 95 89 85 82 88 84 81 86 83 81 85 82 80 79
93 86 82 79 92 86 81 78 84 81 78 83 80 77 82 79 77 76
90 83 79 75 89 83 78 75 81 78 75 80 77 74 79 76 74 73
87 80 75 72 86 80 75 72 79 75 72 78 74 72 77 74 71 70
85 77 73 70 84 77 73 70 76 72 69 75 72 69 75 71 69 68
82 75 70 67 81 74 70 67 74 70 67 73 69 67 72 69 67 66