Lightolier SIS2GPF228, SIS2GPF254 User Manual
24"
Sidelyte Recessed Fluorescent SIS2GPF228 or 254
Page 1 of 2 Direct/Indirect 2' x 4' with Perforated Baskets
Static, 2 Lamp T5
• Direct/indirect side basket appearance.
• Perforated mesh lamp shields with white acrylic overlays.
• 59.6% efficient (2 lamp 28W T5).
• 61.6% efficient (2 lamp 54W T5).
• Spacing to mounting ratio 1.3.
• Only 6" deep body.
• One-piece housing.
• Ballast accessible from room side.
• Perforated lamp shields hinge for easy relamping.
• 4 earthquake clips standard.
• UL Listed twin knockout access plate.
• Not suitable for continuous mounting.
Mounting Methods Dimensions
Job Information Type:
Job Name:
Cat. No.:
Lamp(s):
Volts/Ballast:
Lightolier a Genlyte company www.lightolier.com
Technical Information: (978) 657-7600 • Fax (978) 658-0595
631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710
We reserve the right to change details of design, materials and finish.
© 2006 a Genlyte company Section 5/Folio M17-15
2/06
G
exposed T-grid ceiling
Order Catalog Number FK92X4.
2"x 2-1/2" access plate
with two K.O.s (7/8" dia.)
6" (152mm)
47-31/32" (1218mm)
24" (610mm)
6"
(152mm)
drywall kit (see options)
1/4" max.
1-1/2" max.
15/16"
or 1"
Type "G"
Fixture
Support
(by others)
Drywall Kit
(see options)
Dry Wall (by others)
Sidelyte Recessed Fluorescent SIS2GPF228 or 254
Page 2 of 2 Direct/indirect 2' x 4' with Perforated Baskets
Static, 2 Lamp T5
Lightolier a Genlyte company www.lightolier.com
Technical Information: (978) 657-7600 • Fax (978) 658-0595
631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710
We reserve the right to change details of design, materials and finish.
© 2006 a Genlyte company Section 5/Folio M17-15
Job Information Type:
Ordering Information
Explanation of Catalog Number. Example: SIS2GPF228120PIGLR
Options/Accessories
Fusing: Internal fast-blow fusing. SUFFIX GLR.
Internal slow-blow fusing. SUFFIX GMF.
Drywall Kit: Order Catalog Number: FK92X4.
Specifications
Performance: In an installation of 2 lamp 28W luminaires in a room cavity ratio of 1, with
reflectance 80% ceiling, 50% walls, 20% floor, the C.U. shall not be less than .61. To
reduce glare the average brightness at 65° shall not exceed 2161 candelas per square
meter. To control veiling reflections, luminaire output in the 30°-90° zone shall not be less
than 75.2%.
Materials: Chassis parts are die-formed code gauge cold rolled steel.
Housing side rails
hemmed over and housing ends are turned-in for safe handling.
Lamp Shields: 22 gauge steel perforated mesh lamp shield with white acrylic overlay.
Finish: Chassis exterior–black baked polyester enamel. Cavity–white baked polyester
enamel minimum 86% reflectance. Phosphate undercoating.
Lamp Shield: Baked flat white acrylic enamel.
Specifications (continued)
Electrical: Thermally protected class “P” ballast C.B.M. approved, non PCB. If K.O. is
within 3" of ballast, use wire suitable for at least 90°.
Labels: I.B.E.W. UL and ULc Listed.
SI
Sidelyte:
Direct/Indirect
Recessed with
Perforated Mesh
Shield
S
Body Style:
S= Static
2
Fixture
Width
G
Ceiling Type
2
Lamp
Quantity:
2=2 Lamp
Lamp
(By Others)
28=28W T5
54=54W T5
Options:
Add appropriate
suffix to catalog
no., ie: (GLR)
Ballast Type:
<20THD <10THD
1-2 Lamp 28W Elec. T5 – P
I †
1-2 Lamp 28W Elec. T5 – PG ††
1-2 Lamp 54W Elec. T5 – PG ††
†† Instant Start (120, 277)
†† Program Rapid Start (UNV only)
Voltage:
120, 277 or
UNV=120-277
0.0 45.0 90.0 FLUX
0 1060 1060 1060
5 1056 1052 1054
15 1002 1008 1019 285
25 906 928 953 428
35 779 822 869 515
45 622 702 779 541
55 446 583 698 517
65 268 484 634 465
75 141 379 488 358
85 34 44 49 69
90 000
Model No. SIS2GPF228120PI
LER = FP - 55.0 IW - 55.7 BF - 0.93
Comparative yearly lighting energy cost per
1000 lumens = $4.36
Report Number: G2005287
Catalog Number: SIS2GPF228120PI
Lamps: FP28/835
Luminaire: SIS 2'x4' with 2 perforated side
baskets.
Ballast: Ultrasave
Report is based on 2750 Lumens per lamp.
Efficiency: 59.6%
CIE Type-Direct-Indirect
Plane: 0-Deg 90-Deg
Spacing Criteria: 1.2 1.3
Shielding Angles: 90 90
Plane: 0-Deg 90-Deg
Luminous Length: 46.920 22.920
CANDELA DISTRIBUTION
AVERAGE AVERAGE AVERAGE AVERAGE
IN DEG. 0-DEG. 45-DEG. 90-DEG.
45 1267. 1430. 1587.
55 1120. 1464. 1753.
65 914. 1650. 2161.
75 785. 2110. 2717.
85 562. 727. 810.
LUMINANCE DATA IN CANDELA/SQ. METER
COEFFICIENTS OF UTILIZATION –
ZONAL CAVITY METHOD. EFFECTIVE
FLOOR CAVITY REFLECTANCE 0.20
0
RC 80 50 30
RW 70 50 30 50 30 10 50 30 10
01646158575553555351
02585348494643474442
03524641433935413835
04484035383330373329
05443630342926332925
06403227312622292522
07382924282320272320
08352721252118252017
09332419231916231916
10 31 22 18 22 17 14 21 17 14
ZONE LUMENS % LAMP % FIXT
00-030 0813 14.8 24.8
00-040 1328 24.1 40.5
00-060 2387 43.4 72.8
00-090 3279 59.6 100.0
90-180 0000 0.0 000.0
00-180 3279 59.6 100.0
ZONAL LUMEN SUMMARY
P
Perforated
Lamp Shield
F
Single
White
Reflector
0.0 45.0 90.0 FLUX
0 1757 1757 1757
5 1749 1745 1745 166
15 1658 1670 1687 472
25 1500 1536 1578 709
35 1287 1360 1438 852
45 1027 1160 1288 895
55 735 964 1155 856
65 441 802 1054 771
75 230 631 811 594
85 52 70 78 109
90 579
Model No. SIS2GPF254120PG
LER = FP - 44.5 IW - 122.62 BF - 1.0
Comparative yearly lighting energy cost per
1000 lumens = $5.39
Report Number: G2005288
Catalog Number: SIS2GPF254120PG
Lamps: T5 HO 54W
Luminaire: SIS 2'x4' with 2 perforated side
baskets.
Ballast: QT 2X54/120PHO
Report is based on 4400 Lumens per lamp.
Efficiency: 61.6%
CIE Type-Direct-Indirect
Plane: 0-Deg 90-Deg
Spacing Criteria: 1.2 1.3
Shielding Angles: 90 90
Plane: 0-Deg 90-Deg
Luminous Length: 46.800 22.800
CANDELA DISTRIBUTION
AVERAGE AVERAGE AVERAGE AVERAGE
IN DEG. 0-DEG. 45-DEG. 90-DEG.
45 2109. 2382. 2645.
55 1861. 2441. 2924.
65 1515. 2756. 3621.
75 1290. 3540. 4550.
85 0866. 1166. 1300.
LUMINANCE DATA IN CANDELA/SQ. METER
COEFFICIENTS OF UTILIZATION –
ZONAL CAVITY METHOD. EFFECTIVE
FLOOR CAVITY REFLECTANCE 0.20
0
RC 80 50 30
RW 70 50 30 50 30 10 50 30 10
01666360595755575553
02605450514744494643
03544742444037433936
04504236393531383430
05453731353027343026
06423328322723312623
07393025292420282320
08362722262218252118
09342520242016231916
10 32 23 18 22 18 15 22 18 15
ZONE LUMENS % LAMP % FIXT
00-030 1347 15.3 24.86798
00-040 2198 25.0 40.5
00-060 3949 44.9 72.8
00-090 5422 61.6 100.0
90-180 0000 0.0 000.0
00-180 5422 61.6 100.0
ZONAL LUMEN SUMMARY
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