(P8043-21) Specification Sheet

P830-TG WITH P8043-21
Report No. 98262
No. Lamps: 1 Type Lamp: 50PAR20/NFL-SYLVANIA Total Lumens: 530
Fixture Efficiency: 93.3%
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 1.1 12 10.5 5.3 6
14 1.5 10 14.5 7.3 5
12 2.1 8 21.3 10.6 4
10 3.4 6 34.1 17.1 3
8 6.3 5 63.5 31.7 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
1920
1718
1207
650
363
196
113
71
36
15
9
6
5
3
1
1
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
111 111 111 111 108 108 108 108 103 103 103 99 99 99 95 95 95 93
107 104 102 101 104 102 101 99 99 97 96 95 94 93 92 91 91 89
103 99 96 93 101 97 94 92 94 92 90 92 90 88 89 88 86 85
99 94 90 87 97 93 89 87 90 88 85 88 86 84 86 84 83 81
95 90 85 82 94 89 85 82 87 83 81 85 82 80 83 81 79 78
92 86 81 78 90 85 81 78 83 80 77 82 79 77 81 78 76 75
89 82 78 75 87 82 77 74 80 77 74 79 76 74 78 75 73 72
86 79 75 72 85 78 74 71 77 74 71 76 73 71 75 73 70 69
83 76 72 69 82 76 72 69 75 71 68 74 71 68 73 70 68 67
80 73 69 66 80 73 69 66 72 69 66 72 68 66 71 68 66 65
78 71 67 64 77 71 67 64 70 66 64 69 66 64 69 66 64 63