Catalog Number
Notes
Type
FEATURES & SPECIFICATIONS
INTENDED USE — 2RT5 flanged is designed for use with a drywall adapter kit. This
combination allows for the installation of the 2RT5 in any area with drywall ceilings
common in reception and elevator areas and stairwells. Certain airborne contaminants
can diminish integrity of acrylic. Click here for Acrylic Environmental Compatibility
table for suitable uses.
OPTICAL SYSTEM — Delivers volumetric lighting by filling the entire volume of space
with light, delivering the ideal amount to walls, cubicles, work surfaces and people.
Luminous characteristics are carefully managed at high angles to deliver just enough
intensity to deliver the volumetric effect.
Regressed, two-piece refractive system obscures and softens the lamp and smoothly
washes the reflector with light.
Linear faceted reflector softens and distributes light into the space and minimizes the
luminance ratio between the fixture and the ceiling.
Mechanical cut-off across the reflector and fresnel refracton along the refractor
provide high angle shielding and a quiet ceiling.
Sloped endplates provide a balanced fixture to ceiling ratio while enhancing the
perception of fixture depth.
CONSTRUCTION — Impact modified acrylic prismatic refractor with polymer lightdiffusing film.
Rugged center reflector section is hinged to fixture and held in position with two captive
screws. Room side access to ballast and wiring compartment. Cold rolled steel reflectors
are embossed with linear facets and polyester powder painted after fabrication.
Rigid structure with ballast box and endplates. DGA24 flange trim ships separately.
ELECTRICAL SYSTEM — Highly efficient program-start electronic ballasts, Class P,
thermally protected, resetting, HPF, non-PCB, UL Listed, CSA Certified, sound rated A+.
Your choice of Premium or Premium XP T5 lamp with enhanced phosphors and 85 CRI.
Ballast/lamp efficacy up to 100+ LPW. Lamp is TCLP compliant.
0.90 or 0.95 ballast factor standard for typical applications. 1.15 ballast factor or F54T5HO
lamping available for higher ceiling height applications.
Step-dimming option allows system to be switched to 50% power for compliance with
common energy codes while maintaining fixture appearance.
Listed ballast disconnect with strain relief and leads provided standard for non-emergency fixtures.
S5 option available for use with SIMPLY5™ Lighting Intelligence system with multi-level
dimming. See SYNERGY® Lighting Controls specification sheets for more information.
Ballast Disconnect provided standard where required to comply with U.S. and Canadian
electrical codes.
MAINTENANCE — Hinged center reflector swings down for hands-free room side
access to ballast and wiring compartment.
Lamps accessed by squeezing refractor to release from retention tabs.
2RT5
FLANGED 2'X 4'
2 Lamps
Premier and Premier XP T5
Specifications
Length: 48 (1218)
Width: 24 (610)
Depth: 3-1/8 (79)
All dimensions are inches (millimeters) unless otherwise specified.
LISTING — UL Listed (standard). Optional: Canada CSA or cUL. Mexico NOM.
WARRANTY — Fixture guaranteed for one year against mechanical defects in manufacture. Lamp and ballast system warranty (24 months for lamp, 60 months for ballast) by
lamp and ballast manufacturer.
Protected by one or more of US Patents Nos. 7,229,192; D541,467; D541,468; D544,633;
D544,634; D544,992; D544,933 and additional patent pending.
Specifications subject to change without notice.
For shortest lead times, configure product using standard options (shown in bold).
Example: 2RT5 28T5 F MVOLT GEB95S LPM835P
ORDERING INFORMATION
F
2RT5
Series
Voltage
2RT5 Recessed
T5
MVOLT3
Lamp type
28T5 28W T5 (46")
3474
Trim type
F Flange2
54T5HO 54W T5 (46")1
NOTES:
1 For T5HO applications, use GEB10PS, GEB80 or GEB80S ballast.
2 DGA24 flange trim ships separately.
3 MVOLT (120-277 volts), 50-60HZ.
4 For 347V, use GEB95S or GEB10PS.
5 SIMPLY5 available with HW (hardwire) only.
6 Required. All fixtures shipped with lamps installed.
7 Must specify voltage, 120 or 277.
8 See PS1400QD spec sheet for EL lumen output information.
Fluorescent
Ballast
GEB95 0.95 ballast factor
GEB95S 0.95 ballast factor,
step dimming
GEB115 1.15 ballast factor
GEB115S 1.15 ballast factor, step
dimming
GEB10PS 1.0 ballast factor,
program start
S5 0.95 ballast factor
SIMPLY5 system5
GEB10PS 1.0 ballast factor,
program start1
GEB80 .80 ballast factor1
GEB80S .80 ballast factor, step
dimming 1
GEB90 .90 ballast factor
GEB90S .90 ballast factor, step
dimming
Lamp 6
Options
LPM835P Premier 3500°K
28W lamp
GLR Internal fastblow fuse7
LPM830P Premier 3000°K
28W lamp
LPM841P Premier 4100°K
28W lamp
L835XP Premier XP
3500°K 28W lamp
L830XP Premier XP
3000°K 28W lamp
L841XP Premier 4100°K
28W lamp
LP835 3500°K 54W lamp
LP830 3000°K 54W lamp
LP841 4100°K 54W lamp
EL14 Emergency
battery pack8
HW Hardwire for S5
system; replaces
RELOC ®
CSA Listed and
labeled to
comply with
Canadian
standards
QFC_ Quick-flex cable7
Sheet #: 2RT5-2x4-F
VRL-120
2RT5 Volumetric Recessed Lighting 2' x 4' Flanged
MOUNTING DATA
RT5/2RT5 with flanged mounting option is a recessed fixture featuring room-side ballast access plus a mounting accessory, a drywall-to-grid adaptor (DGA)
supported with tie wire (by others) to the overhead building structure (see detail below). Fixtures mounted with DGA accessories are not suitable for endto-end row mounting. Rough-in dimensions for DGA-equipped fixtures are 7/8" longer in length and width, than the dimensions for standard flanged fixtures.
RT5 fixture size
1' x 4'
2' x 2'
2' x 4'
Rough-in opening for DGA accessory
12-7/8" x 48-7/8"
24-7/8" x 24-7/8"
24-7/8" x 48-7/8"
PHOTOMETRICS
2RT5 28T5 GEB95 LPM835P, (2) FP28/835/PM/ECO lamps, 2730 lumens per lamp, s/m 1.2 (along) 1.3 (across), test no. LTL13260
LER: 80.4 lpw
*The LER (Luminaire Efficacy Rating) is the lumens per watt rating for this fixture. It is used to compare the energy efficiency of various products. This photometric report is based
upon IES testing procedures, as stated in LM-41-1998. The reported lumen rating is based upon lamp manufacturer’s published lumen output for the cold spot temperature measured
during lamp calibration.
Ballast
GEB90, GEB90S
GEB90S @ 50% power mode
GEB95, GEB95S
GEB95S @ 50% power mode
GEB115, GEB115S
GEB115S @ 50% power mode
GEB80, GEB80S
GEB80S @ 50% power mode
S5
Input Wattage
120/277
55/54
27
60/58
28/28
73/71
35/35
96/93
52/51
60/58
System
3-lamp T8
2RT5 2-lamp T5
2RT5 2-lamp T5
2RT5 2-lamp T5
T5/T8 Energy Comparison
Lamp
Ballast
Input
Watts Saved
Type
Factor
Watts Compared to T8
F32T8
0.88
88
–
F28T5XP
0.90
54
34
F28T5
0.95
58
30
F28T5
1.15
71
17
Lithonia Lighting
Sheet #: 2RT5-2x4-F
©2006 Acuity Brands Lighting, Inc., All rights reserved, Rev. 11/17/09
Fluorescent
One Lithonia Way, Conyers, GA 30012
Phone: 800-858-7763 Fax: 770-929-8789
www.lithonia.com