Luminaire Type:
Catalog Number
(autopopulated):
Adjustable Lamp
OPTICAL SYSTEM
• Self-flanged, anodized semi-specular or matte-diffuse metal finishing trim.
• Patented optical design provides lamp before lamp image and smooth transition from top of the reflector to bottom. Patented Bounding Ray™ Optical Principle design (U.S. Patent No. 5,800,050).
•
•
•
•
1/8” thick softening lens eliminates beam striations and ensures maximum efficiency. Provides required protective shielding.
1/8” thick softening lens eliminates beam striations and ensures maximum efficiency. Provides required protective shielding.
Tool-less 0° - 35° vertical and 360° horizontal lamp adjustments made with the trim assembly removed for simple focusing.
MECHANICAL SYSTEM
• Rolled steel housing with matte black finish and 16-gauge painted steel mounting/plaster frame accommodates up to 1-1/2” thick ceiling materials.
Patent-pending adjustable aperture allows 1/4” adjustments in all directions and up to 5° of rotation allowing post-installation adjustments to ensure trim to trim alignment.
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16-gauge galvanized steel mounting bars with continuous 4” vertical adjustments are shipped pre-installed.
Post-installation adjustment possible without the use of tools from above or below ceiling.
• Secondary housing adjustment system for precise, final ceiling to flange alignment.
ELECTRICAL SYSTEM
• Tool-less access door provides access to junction box and ballast through
•
• the aperture.
G12 (T6), G8.5 (T4) or PGJ5 (T4T) base ceramic socket.
Pre-wired, electronic, 120 or 277V ballast module is standard.
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3000 K lamp ships standard.
Thermally activated insulation detector.
LISTING
• Fixtures are UL listed for thru-branch wiring, Non-IC recessed mounting and damp locations. Listed and labeled to comply with Canadian Standards. Access above ceiling required.
WARRANTY
• 1-year limited warranty. Complete warranty terms located at: www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx
EXAMPLE: SQDTH T6 70MHC 4AR N LD 120
Series
SQDTH 1
Lamp type
T4T 2
T4
T6 3
Wattage
20MHC
39MHC
70MHC
Aperture/Trim
4AR
4PR
4WTR
4WR 4
4BR 4
Clear
Pewter
Wheat
White
Black
N
M
W
Distribution Finish
Narrow
Medium
Wide
(blank) Semi-specular
LD Matte-diffuse
Voltage Options
120
277
347
QRS
QRSTD
EC
SF
LRC 5
TRW
MFLG 6
CP
L/LP
Quartz restrike system
QRS with time delay
Emergency circuit
Single fuse
Provides compatibility with Lithonia Reloc
System. Access above ceiling required.
White flange
Microflange trim
Chicago plenum approved
Less lamp
®
ORDERING NOTES
1. Standard metal trim (SQMT).
2. Philips Mini MasterColor available in 20W, 39W & 120V only.
3. Available in 39W, 70W only.
4. Not available with matte-diffuse finish.
5. For compatible Reloc systems, refer to TECH-110 .
6. Order ships as 3 components: housing, trim and microflange gypsum board.
SQDTH-4-ADJ
PAGE 1 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2009-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/29/13. Specifications subject to change without notice.

4” SQDTH
Adjustable Lamp
T4/T6
All dimensions are inches (centimeters) unless otherwise noted.
15-1/4
(38.8)
17-3/16
(43.7)
Ceiling opening: 5-1/8 (13.0)
Overlap trim: 5-3/4 (14.6)
Aperture opening: 4-3/8 (11.1)
12
(30.4)
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2009-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/29/13. Specifications subject to change without notice.
SQDTH-4-ADJ
PAGE 2 OF 3

CONSULT FACTORY FOR PHOTOMETRY
4” SQDTH
Adjustable Lamp
T4/T6
PHOTOMETRY NOTES
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•
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Tested to current IES and NEMA standards under stabilized laboratory conditions.
Actual performance may differ as a result of end-user environment and application.
Consult factory or IES file for microgroove baffle, black cone or other photometric reports.
SQDTH-4-ADJ
PAGE 3 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2009-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/29/13. Specifications subject to change without notice.