Decorative Opalite™ 6790BK226U
Page 2 of 2 | Ceiling or Wall Mounted Compact Fluorescent |
INITIAL FOOTCANDLES
80
70
60
50
40
30
20
10
2 Light - 26W Quad Tube
1800 Lumens Per Lamp
RCR = 1 (60' x60'x8.5' room) RCR = 5 (12' x12'x8.5' room) RCR = 10 (6' x6'x8.5' room)
Room surface reflectances
80% Ceiling,50% Walls,20% Floor
20 | 40 | 60 | 80 | 100 | 120 |
AREA PER FIXTURE IN SQUARE FEET
3 4 5 6 7 891011
CENTER TO CENTER DISTANCE OF FIXTURES IN FEET
Use quick calculator chart to determine the number and spacing of luminaries for a desired level of illumination.
SPACING RATIO = 1.3
CERTIFIED TEST REPORT NO. 0971FR
COMPUTED BY LSI PROGRAM
LIGHTOLIER SURFACE UTILITY FLOURESCENT
CAT. 6790BK226U WITH TWIST LOCK LEXAN DIFFUSER
ROBERTSON BALLAST #PSM226CQMVW, 120VAC
180 | 150 | 120 |
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| CANDLEPOWER DATA |
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| ACROSS |
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| ANGLE | CANDLEPOWER | LUMENS | ANGLE | CANDLEPOWER | LUMENS |
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| 45 |
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| 0 | 286 |
| 90 | 48 |
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| 5 | 286 | 28 | 95 | 46 | 51 | |
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| ALONG |
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| 10 | 284 |
| 100 | 45 |
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| 90 |
| 15 | 281 | 80 | 105 | 44 | 47 | ||
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| 20 | 276 |
| 110 | 44 |
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| 25 | 269 | 125 | 115 | 42 | 42 |
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| 30 | 260 |
| 120 | 41 |
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| 35 | 249 | 156 | 125 | 39 | 35 |
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| 40 | 235 |
| 130 | 37 |
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| 100 |
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| 80 | 45 | 221 | 171 | 135 | 34 | 27 | ||||
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| 50 | 204 |
| 140 | 31 |
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| 55 | 185 | 166 | 145 | 29 | 19 |
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| 60 | 164 |
| 150 | 26 |
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200 |
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| 65 | 143 | 142 | 155 | 23 | 11 | |
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| 70 | 120 |
| 160 | 20 |
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| 75 | 97 | 103 | 165 | 17 | 5 |
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| 80 | 75 |
| 170 | 13 |
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| 85 | 58 | 66 | 175 | 11 | 2 |
300 |
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| 180 | 10 |
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| ZONAL LUMENS AND PERCENTAGES |
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0 | 30 | ZONE | LUMENS | % LAMP | %LUMINAIRE |
231 | 6.80 | 18.23 | |||
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| 386 | 11.38 | 30.53 | |
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| 723 | 21.27 | 57.04 | |
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| 1032 | 30.37 | 81.47 | |
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| 645 | 18.99 | 50.94 | |
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| 309 | 9.11 | 24.43 | |
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| 234 | 6.91 | 18.53 | |
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| 1267 | 37.29 | 100.00 | |
** EFFICIENCY = 32.6% **
TESTED ACCORDING TO IES PROCEDURES. TEST DISTANCE EXCEEDS FIVE
TIMES THE GREATEST LUMINOUS OPENING OF LUMINAIRE.
COEFFICIENTS OF UTILIZATION ZONAL CAVITY METHOD %EFFECTIVE FLOOR CAVITY REFLECTANCE = .20
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| 80 |
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| 70 |
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| 10 |
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| 50 | 30 | 10 | 50 | 30 | 10 | 50 | 30 | 10 | 50 | 30 | 10 | 50 | 30 | 10 | 0 |
| 1 | .37 .35 .33 | .35 .34 .32 | .32 .31 .30 | .30 .29 .28 | .27.26 .26 | .24 | ||||||||||
RATIO | 2 | .32 .29 .27 | .30 .28 .26 | .28 .26 .24 | .26 .24 .23 | .24 .23 .21 | .20 | ||||||||||
4 | .25 .21 .19 | .24 .21 .18 | .22 .19 .17 | .20 .18 .16 | .19 .17 .16 | .14 | |||||||||||
CAVITY | 3 | .28 .25 .22 | .27 .24 .22 | .25 .22 .20 | .23 .21 .19 | .21 .19 .18 | .17 | ||||||||||
6 | .19 .16 .14 | .19 .16 .13 | .17 .15 .13 | .16 .14 .12 | .15 .13 .11 | .11 | |||||||||||
ROOM | 5 | .22 .19 .16 | .21 .18 .16 | .19 .17 .15 | .18 .16 .14 | .17 .15 .13 | .12 | ||||||||||
8 | .16 .13 .10 | .15 .12 .10 | .14 .11 .10 | .13 .11 .09 | .12 .10 .09 | .08 | |||||||||||
| 7 | .17 .14 .12 | .17 .14 .12 | .16 .13 .11 | .14 .12 .10 | .13 .11 .10 | .09 | ||||||||||
| 9 | .14 .11 .09 | .14 .11 .09 | .13 .10 .08 | .12 .10 .08 | .11 .09 .08 | .07 | ||||||||||
| 10 | .13 .10 .08 | .12 .10 .08 | .12 .09 .07 | .11 .09 .07 | .10 .08 .07 | .06 | ||||||||||
DETERMINED IN ACCORDANCE WITH CURRENT IES PUBLISHED PROCEDURES
Job Information | Type: |
Lightolier a Genlyte Thomas Company | www.lightolier.com |
631 Airport Road, Fall River, MA 02720 • (508)
© 2002 Genlyte Thomas Group LLC (Lightolier Division) • A0902
