(P8043-21) Specification Sheet

P830-TG WITH P8043-21
Report No. 98261
No. Lamps: 1 Type Lamp: 50PAR20/NFL-GE Total Lumens: 570
Fixture Efficiency: 98.8%
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 1.6 10 16.5 8.2 4
14 2.3 9 22.7 11.3 3
12 3.3 7 33.2 16.6 3
10 5.3 6 53.3 26.7 2
8 9.9 4 99.2 49.6 2
Beam Angle - 42 Beam Angle - 16
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
3000
2050
1271
670
406
257
142
78
35
17
10
8
6
3
1
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
118 118 118 118 115 115 115 115 110 110 110 105 105 105 101 101 101 99
113 111 109 107 111 109 107 106 105 104 102 101 100 99 98 97 96 95
109 105 102 99 107 103 101 98 100 98 96 98 96 94 95 93 92 90
105 100 96 93 103 99 95 92 96 93 91 94 91 89 92 90 88 87
101 95 91 88 100 94 90 87 92 89 86 90 87 85 89 86 84 83
98 91 87 83 96 90 86 83 89 85 82 87 84 81 86 83 81 80
94 87 83 79 93 87 82 79 85 82 79 84 81 78 83 80 78 77
91 84 79 76 90 83 79 76 82 78 76 81 78 75 80 77 75 74
88 81 76 73 87 80 76 73 79 76 73 79 75 72 78 75 72 71
86 78 74 71 85 78 73 70 77 73 70 76 73 70 75 72 70 69
83 76 71 68 82 75 71 68 74 71 68 74 70 68 73 70 68 67