
Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
HID Downlights
4” DMRH
Lensed Wallwash
Open Cone with Spread Lens
MR16 Ceramic Metal Halide Lamp
FEAT URES ORDERING INFORMATION NOTES
OPTICAL SYSTEM
• Internal housing components painted matte black. Lamp snoot minimizes stray
light in housing.
• Self-flanged, semi-specular matte-diffuse or specular cone with spread lens.
Minimum flange matches cone finish.
• Optical system is retained by self-aligning, butterfly support springs.
• Optical system designed for spot lamps.
• Tool-less 355° horizontal aiming adjustments are made with optical system
removed.
MECHANICAL SYSTEM
• Black painted housing features tool-less top access and accommodates a
maximum 2” ceiling thickness.
• Tool-less re-lamp capability from above or below ceiling.
• 16-gauge galvanized steel mounting bars with continuous 4” vertical adjust-
ment are shipped pre-installed. Post installation adjustment possible without
the use of tools above or below ceiling.
• Secondary housing adjustment system for precise, final flange to ceiling
EXAMPLE: DMRH WSH MR16 20MHC 4AC 120
alignment.
• Galvanized steel junction box with hinged access covers and spring latch. Four
combination 1/2”-3/4” knockouts for straight-through conduit runs. Capacity: 8
(4 in, 4 out) No. 12 AWG conductors rated for 90°C.
ELECTRICAL SYSTEM
• Tool-less access door provides access to junction box through the aperture.
• Replaceable socket assembly. GX10 socket assembly standard (20W - 39W).
• Electronic ballast module is standard and can be serviced from above or below
ceiling. Servicing from below requires removal of housing wrap and 6” of clearance above housing.
• Thermally-activated insulation detector.
LISTING
• Fixtures are UL Listed for thru-branch wiring, non-IC recessed mounting and
damp locations. Listed an labeled to comply with Canadian standards.
WARRANTY
• 1-year limited warranty. Complete warranty terms located at:
www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx
Series Configuration Lamp type Lamp wattage Aperture/Trim color Finish Voltage
DMRH WSH MR16 MR16 capability 20MHC
39MHC
4AC Clear
1
4BC
Black
(blank) Semi-specular
LD Matte-diffuse
120
277
4PC Pewter
4WTC
Wheat
4GC Gold
1
4MB
Black baffle
Options
2
RRL
RELOC®-ready luminaire. Provides compatibility with Lithonia RELOC system. Access above ceiling
required.
CP Chicago plenum
SF Single fuse
ACCESSORIES order as separate catalog numbers (shipped separately)
• For lens accessories, refer to TECH-120.
ORDERING NOTES
1. Not available with finishes.
2. For compatible RELOC systems, refer to TECH-110.
DMRH-4-LENSED-WSH
PAGE 1 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/06/13. Specifications subject to change without notice.
LPFL Lamped, flood
LPSP Lamped, spot
LPWFL Lamped, wide flood

4” DMRH
Overlap trim: 5-7/16 (13.8)
Lensed Wallwash
Open Cone with Spread Lens, MR16 Ceramic Metal Halide Lamp
DIMENSIONAL DATA
All dimensions are inches (centimeters) unless otherwise noted.
6-3/4
(17.2
15-1/4
(38.5)
Aperture: 4-5/16 (11.0)
Ceiling opening: 4-7/8 (12.4)
15-9/16
(39.5)
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/06/13. Specifications subject to change without notice.
DMRH-4-LENSED-WSH
PAGE 2 OF 3

4” DMRH
Lensed Wallwash
Open Cone with Spread Lens, MR16 Ceramic Metal Halide Lamp
PHOTOMETRY
TECHNICAL INFORMATION
Footcandle values are initial and tables are based on minimum of six units. For fixture-to-wall
distance other than those shown, use maximum of one-to-one spacing (distance between fixtures not
more than distance to wall) for best results.
Fixture/Lamp Candlepower Data Footcandle values
157
1
2
135
0
0
0
112
1
2
1
67
0
90
0
1
22
2
0
45
0
2
PHOTOMETRY NOTES
• 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.
DMRH-4-LENSED-WSH
PAGE 3 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 08/06/13. Specifications subject to change without notice.