Specification Sheet

P83 WITH P8068-28
Report No. 98037
No. Lamps: 1 Type Lamp: 13W QUAD CF - GE Total Lumens: 860
Fixture Efficiency: 58.2%
S/MH Ratio: 1.4
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 0.1 38 1.0 0.5 19
14 0.1 32 1.4 0.7 16
12 0.2 27 2.0 1.0 13
10 0.3 21 3.2 1.6 11
8 0.6 15 6.0 3.0 8
Beam Angle - 109 Beam Angle - 71
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
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.= 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
182
180
172
166
166
168
169
167
157
139
116
91
67
45
27
16
9
4
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
69 69 69 69 68 68 68 68 65 65 65 62 62 62 59 59 59 58
64 61 59 57 62 60 58 56 58 56 55 55 54 53 53 52 51 50
59 54 51 48 57 53 50 47 51 48 46 49 47 45 48 46 44 43
54 48 44 40 52 47 43 40 45 42 39 44 41 38 42 40 38 36
49 43 38 34 48 42 37 34 40 37 33 39 36 33 38 35 33 31
45 38 33 29 44 38 33 29 36 32 29 35 32 29 34 31 28 27
42 34 29 26 41 34 29 26 33 29 25 32 28 25 31 28 25 24
39 31 26 23 38 31 26 23 30 26 22 29 25 22 28 25 22 21
36 28 24 20 35 28 23 20 27 23 20 26 23 20 26 22 20 19
34 26 21 18 33 26 21 18 25 21 18 24 21 18 24 20 18 17
31 24 19 16 31 24 19 16 23 19 16 23 19 16 22 19 16 15