Philips Silhouette SF - Manual (Page 3)

Silhouette SF
Indirect/Direct pendant, 2 lamp, T5/HO
Page 3 of 3
Philips Lightolier
e: [email protected]
t: (508) 679-8131, Technical info. (978) 657-7600
w: www.lightolier.com
SF September 7, 2012
Specifications are subject to change without notice.
© Koninklijke Philips Electronics N.V., 2012. All rights reserved.
Zonal lumen summary
Zone Lumens % Lamp % Fixt.
0- 90 2749 47.4 53.0
90-180 2440 42.1 47.0
0-180 5189 89.5 100.0
Photometry
Efficiency: 89.5%
Lumens: 2900 lm
Lamps: (2) F28T5
Catalog number: SF24I281WH
Report number: LRL 299-1H
Vertical Horizontal Angle
Angle 0 22.5 45 67.5 90
0 747 747 747 747 747
5 746 747 740 748 747
15 725 729 725 749 737
25 674 681 690 728 736
35 582 601 632 691 705
45 465 495 544 630 650
55 364 394 472 582 569
65 244 280 372 470 505
75 150 194 292 398 428
85 33 99 191 276 308
95 13 77 162 238 270
105 34 182 235 282 299
115 138 239 464 621 657
125 217 278 426 562 616
135 301 347 401 499 520
145 343 375 435 467 474
155 383 394 447 493 503
165 408 398 428 462 472
175 415 389 404 424 419
180 415 404 392 382 382
Ceiling: 80 70 50
Wall: 70 50 30 70 50 30 50 30 10
RCR 0 96 96 96 89 89 89 76 76 76
1 87 82 78 80 76 73 65 62 60
2 79 72 66 73 66 61 56 52 49
3 72 63 56 66 58 52 50 45 41
4 66 55 48 60 51 45 44 39 35
5 60 49 42 55 46 39 39 34 30
6 55 44 37 51 41 34 35 30 26
7 51 40 32 47 37 30 32 26 23
8 47 36 28 43 33 27 29 23 20
9 44 32 25 40 30 24 26 21 17
10 40 29 22 37 27 21 23 18 15
Based on a floor reflectance of 0.2
Candela distribution Coefficients of utilization (%) Candela curve
8” (20.32cm)
4”
(10.16cm)
4” (10.16cm)
3.4”
(8.64cm)
4.6” (11.68cm)
4” (10.16cm)
8”
(20.32cm)
4”
(10.16cm)
2,000
700
500
400
200
FOOTCANDLE 20 30 50 70 100
1 2 3 4 5 7 10 20 30 40 50 70 100 200
ROOM AREA IN SQUARE FEET
NUMBER OF FIXTURES REQUIRED
300
1,000
100
90˚
85˚
95˚
105˚
75˚
65˚
55˚
115˚
125˚
180˚ 175˚ 165˚ 155˚ 145˚ 135˚
0˚ 5˚ 15˚ 25˚ 35˚ 45˚
750
600
450
300
150
0
150
300
450
600
750
90˚
0˚
Calculations are for 28 watt T5 lamps, for 54 watt T5 lamps
multiply by 1.7
Quick calculator and ceiling brightness
8” (20.32cm)
4”
(10.16cm)
4” (10.16cm)
3.4”
(8.64cm)
4.6” (11.68cm)
4” (10.16cm)
8”
(20.32cm)
4”
(10.16cm)
2,000
700
500
400
200
FOOTCANDLE 20 30 50 70 100
1 2 3 4 5 7 10 20 30 40 50 70 100 200
ROOM AREA IN SQUARE FEET
NUMBER OF FIXTURES REQUIRED
300
1,000
100
90˚
85˚
95˚
105˚
75˚
65˚
55˚
115˚
125˚
180˚ 175˚ 165˚ 155˚ 145˚ 135˚
0˚ 5˚ 15˚ 25˚ 35˚ 45˚
750
600
450
300
150
0
150
300
450
600
750
90˚
0˚
1. Find room area on vertical axis.
2. Move across chart to footcandle
curve.
3. Move down to horizontal axis and
read number of fixtures required.