Lighting Facts

701 Millennium Blvd
Greenville, SC 29607
www.hubbelllighting.com
NVLAP LAB CODE: 201003-0
®
THIS REPORT IS BASED ON PUBLISHED INDUSTRY PROCEDURES. FIELD PERFORMANCE MAY DIFFER FROM LABORATORY PERFORMANCE.
REPORT NUMBER: 15.00035 PAGE: 7 OF
8
ISSUE DATE: 01/27/15
PREPARED FOR: PROGRESS
COEFFICIENTS OF UTILIZATION - ZONAL CAVITY METHOD
EFFECTIVE FLOOR CAVITY REFLECTANCE 0.20
RC 80 70 50 30 10 0
RW
70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
0 43 43 43 43 40 40 40 40 33 33 33 27 27 27 22 22 22 19
1 40 39 38 37 37 36 35 35 31 30 30 26 26 25 21 21 21 19
2 38 36 34 33 35 34 32 31 29 28 27 25 24 23 21 20 20 18
3 36 33 31 30 33 31 29 28 27 26 25 23 23 22 20 20 19 18
4 34 31 29 27 32 29 27 26 26 24 23 22 22 21 19 19 18 17
5 32 29 27 25 30 27 25 24 24 23 22 21 21 20 19 18 18 17
6 31 27 25 23 29 26 24 22 23 22 21 21 20 19 18 18 17 16
7 29 26 23 22 28 25 23 21 22 21 20 20 19 18 18 17 17 16
8 28 24 22 21 26 23 21 20 21 20 19 19 18 17 17 17 16 15
9 27 23 21 20 25 22 20 19 20 19 18 19 18 17 17 16 16 15
10 26 22 20 19 24 21 19 18 20 18 17 18 17 16 16 16 15 15