Dock and Trailer Lighting

Ideal for illuminating the interior of tractor trailers during initial inspection, loading or unloading. Certain airborne contaminants can diminish integrity of acrylic. Refer to Acrylic Environmental Compatibility tables for suitable uses.


Arms and struts constructed of heavy-duty 1-1/2" cross-section, 14-gauge square steel tubing. Reinforcement mounting brackets provide maximum support of arm and head for long service without sagging or bending. Hinged ends reinforced internally with aluminum inserts. Corrosion-resistant hardware. Nuts are locking and exposed threads are plastic capped. Arm and strut ends feature injection-molded end caps.

Finish: Safety-yellow polyester powder paint is standard on arm, strut and metal lamp head. Polycarbonate lamp heads colored safety yellow.


Lamp head for 150W incandescent is polycarbonate, and metal for 300W incandescent. Both include metal wireguard standard. Polycarbonate 50W high pressure sodium lamp head with reflective coating, integral ballast and flush polycarbonate guard. Optional SED acrylic lens suitable for use in food service dock areas.


120V only. Provided with three-prong plug and 8' cord. Lamp head includes on/off switch and porcelain medium-base socket with copper alloy screw shell and center contact. Electrical cord lengths secured via grommets. High pressure sodium models feature reactor type ballasts.


Arm and strut-mounting bracket included. Arm assembly attaches to wall mounting bracket with single bolt. Lamp head attaches with a single bolt to arm and is powered by a NEMA plug and receptacle assembly in arm. Heavy-duty wall bracket (HDWB) recommended for fan/light combinations.

Product overview and specifications
Brand Name Lithonia Lighting
Light Source HID - High Pressure Sodium, Incandescent
Product Type Floodlight
Series DSA114, DSA24, DSA40, DSA60, DSA90
Spec Sheets
A summary of the performance and other technical characteristics of the product.
File Type Document Title View
DSA_pdf View
DSA-ADJ_pdf View
Technical Files
Installation documents, building information models, etc.
File Type Document Title View
DSA-docklight-inst_pdf View
dsa-dock-light-installation-instructions_pdf View
DSA-FSSA-Installation-Instructions_pdf View
HDWBTemplate_pdf View
File Type Document Title View
DLMAG-KIT_pdf View
DSA-FAN_pdf View
DSA-replacement-parts-list_pdf View
PLHI_pdf View
Download brochures, sell sheets, photometry files and other sales tools.
File Type Document Title View
DSA-Dock-Light-Training_pdf View