Test Lab Report

Table Of Contents

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THIS REPORT WITH THE USE OF THE NVLAP LOGO SHALL NOT BE USED BY THE CLIENT TO CLAIM PRODUCT CERTIFICATION,

APPROVAL, OR ENDORSEMENT BY NVLAP, NIST, OR ANY AGENCY OF THE FEDERAL GOVERNMENT.

REPORT NUMBER: 18.00160 PAGE: 7 OF 8

ISSUE DATE: 02/14/18

PREPARED FOR: PROGRESS

CATALOG NUMBER: P500148--009-30

COEFFICIENTS OF UTILIZATION - ZONAL CAVITY METHOD

EFFECTIVE FLOOR CAVITY REFLECTANCE 0.20

RC 80 70 50 30 10

RW 70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0

0 113113113113 107107107107 97 97 97 87 87 87 78 78 78 74

1 98 92 86 81 93 87 82 77 78 74 70 70 66 63 62 59 57 53

2 88 78 69 62 83 73 66 59 66 59 54 58 53 49 52 48 44 41

3 79 67 57 50 74 63 55 48 56 49 44 50 44 40 44 40 36 32

4 72 58 48 41 67 55 46 39 49 42 36 44 38 33 39 34 30 26

5 65 51 42 34 61 49 40 33 44 36 30 39 33 28 35 29 25 22

6 60 46 36 29 56 44 35 28 39 32 26 35 29 24 31 26 22 19

7 55 41 32 25 52 39 31 24 35 28 23 32 25 21 28 23 19 16

8 51 37 28 22 48 35 27 21 32 25 20 29 23 18 26 20 17 14

9 48 34 25 20 45 32 24 19 29 22 18 26 20 16 24 19 15 13

10 45 31 23 18 42 30 22 17 27 20 16 24 19 14 22 17 13 11

ALL CANDELA, LUMENS, LUMINANCE, AND VCP VALUES IN THIS REPORT ARE

BASED ON ABSOLUTE PHOTOMETRY. THE COEFFICIENT OF UTILIZATION VALUES

ARE BASED ON THE TOTAL ABSOLUTE LUMEN OUTPUT OF THIS TEST SAMPLE.