ST Series Surface Volumetric LED

The ST Series LED surface mount combines digital LED lighting and controls technologies with high-performance optical design to offer the most advanced surface-mount luminaire for general ambient lighting applications. High-efficacy light engine delivers long life and excellent color, ensuring a superior quality lighting installation that is highly efficient and sustainable.


Housing is roll formed from code-gauge steel.

Impact modified linear-faceted refractor with light diffusing film. Refractor attaches to die cast ends by simple hook and pin design with controlled tension provided by sonically welded end plate, providing secure installation and easy maintenance.

Decorative die-cast end caps provide added durability.

Finish: All metal parts are post-painted in white polyester powder coat for smooth, finished edges and uniform light distribution. Natural aluminum finish available on end caps (see Options).

Injection-molded plastic light traps prevent light leaks between shielding and end plates and centers diffuser on channel.


Volumetric illumination is achieved by creating an optimal mix of light to vertical and horizontal work surfaces, rendering interior space, objects and occupants in a more balanced luminous environment.

Light distribution is carefully controlled at high angles, providing just enough luminous flux to create the volumetric effect.

Angled mounting surface combined with crescent-shape linear faceted refractor system obscures and integrates individual LED images and uniformly washes fixture surface with light.


Long-life LEDs, coupled with high-efficiency drivers, provide superior quantity and quality of illumination for extended service life. STL is rated to deliver L90 performance at 60,000 hours. The LEDs have a CRI of 82.

eldoLED driver options deliver choice of dimming range and choices for control, while assuring flicker-free, low-current inrush, 89% efficiency and low EMI.

Optional nLight® embedded controls continuously monitor system performance, allow for constant lumen management / compensation function, facilitate simple “plug-and-play” network and controls upgrading via Cat-5 cable. Ballast disconnect provided where required to comply with US and Canadian codes.

Product overview and specifications
Brand Name Lithonia Lighting
Color Pewter
Color Rendering Index 80
Control Networkable Control, Occupancy Sensor
Correlated Color Temperature 3000 K, 3500 K, 4000 K, 5000 K
Lumen Maintenance L80
Lumen Output 2000 LM
Product Type Wraparound
Series STL2, STL4
Spec Sheets
A summary of the performance and other technical characteristics of the product.
File Type Document Title View
STL2_pdf View
STL4_pdf View
Technical Files
Installation documents, building information models, etc.
File Type Document Title View
aircraft-cable-installations-instructions_pdf View
STLED-installation-instructions_pdf View
STL-Instructions_pdf View
File Type Document Title View
Acrylic-Polycarbonate-Compatibility_pdf View
Download brochures, sell sheets, photometry files and other sales tools.
File Type Document Title View
ST-Brochure_pdf View
ST-FAQs_pdf View