Product Details

D-Series MA Area Size 1

DSX1 Mast Arm LED Area Luminaire

The sleek design of the D-Series Size 1 reflects the embedded high performance LED technology. It is ideal for many commercial and municipal applications, such as parking lots, plazas, campuses, and streetscapes.


Single-piece die-cast aluminum housing has integral heat sink fins to optimize thermal management through conductive and convective cooling. Modular design allows for ease of maintenance and future light engine upgrades. The LED driver is mounted in direct contact with the casting to promote low operating temperature and long life. Low EPA (0.9 ft2) for optimized pole wind loading.

Exterior parts are protected by a zinc-infused Super Durable TGIC thermoset powder coat finish that provides superior resistance to corrosion and weathering. A tightly controlled multi-stage process ensures a minimum 3 mils thickness for a finish that can withstand extreme climate changes without cracking or peeling. Available in both textured and non-textured finishes.


Precision-molded proprietary acrylic lenses are engineered for superior area lighting distribution, uniformity, and pole spacing. Light engines are available in 3000K (80 CRI), 4000K (67 CRI) or 5000K (67 CRI) configurations. The D-Series Size 1 has zero uplight and qualifies as a Nighttime FriendlyTM product, meaning it is consistent with the LEED® and Green GlobesTM criteria for eliminating wasteful uplight.


Light engine(s) consist of 30 high-efficacy LEDs mounted to a metal-core circuit board to maximize heat dissipation and promote long life (100,000 hrs at 40°C, L87). Class 1 electronic driver has a power factor >90%, THD <20%, and has an expected life of 100,000 hours with <1% failure rate. Easily-serviceable surge protection device meets a minimum Category C Low operation (per ANSI/IEEE C62.41.2).


Four-bolt mast arm mount provides easy, secure installation for nominal 1-1/4” to 2”diameter arms (1-5/8” to 2-3/8” O.D.) and enables the D-Series Size 1 to withstand up to a 3.0 G vibration load rating per ANSI C136.31. Housing includes cast-in wildlife shield and tool-less “lift and turn” NEMA photocontrol receptacle. Die-cast trigger latch on door provides tool-less entry for easy and secure opening with one hand; top-side leveling crosshairs and internal bubble level assist with installation.

Other: Note: Specifications subject to change without notice.


  • A+ Capable : Yes
  • Application Type : Automotive and Parking, Waters, Sewers and Dams
  • Architectural Style : Contemporary
  • Brand Name : Lithonia Lighting
  • Color : Black, Bronze, Brown, Gray, Silver, White
  • Color Rendering Index : 70
  • Control : Dimming Outdoor Control, Networkable Control, Occupancy Sensor
  • Correlated Color Temperature : 3000 K, 4000 K, 5000 K
  • Environment : Outdoor
  • Finish : Gloss, Textured
  • Light Distribution Detail : Forward Narrow, Full Cutoff, IES Type I, IES Type II, IES Type III, IES Type IV, IES Type V
  • Light Source : LED
  • Listings : UL
  • Lumen Output : 11,600 LM, 12,000 LM, 13,500 LM, 15,900 LM, 17,100 LM, 23,400 LM, 7100 LM, 8800 LM, 9100 LM
  • Mounting Type : Pole, Wall
  • Product Type : Area Light
  • Series : DSX1
  • Shape : Rectangular