General T8 Troffer

Complete selection of specification premium air-handling luminaires recommended for all recessed general illumination applications.


Innovative low-profile design optimized around T8 lamps and low-profile electronic ballasts.

Hemmed sides provide smooth edges for easy handling during installation.

Standard steel door frame features precise flush mitered corners and spring- action latches.

Unique design delivers a premium extruded appearance.

Housing and door frame interface provides a superior mechanical light seal without the use of foam gasketing.

Improved performance – higher fixture efficiency.

Integral T-bar safety clips are standard – no need to install separate clips.

Aluminum door frames available, flush or regressed.

Compatible with most ceiling types. Field trim modification kits also available.


Ballast disconnect provided standard where required to comply with U.S. and Canadian electrical codes.

Product overview and specifications
Brand Name Lithonia Lighting
Color Black, Silver, White
Color Rendering Index 80
Correlated Color Temperature 3000 K, 3500 K, 4100 K, 5000 K
Environment Indoor
Finish Gloss, Matte, Unfinished
Light Source Fluorescent
Listings CA Title 20, CSA, NOM, UL
Mounting Type Recessed
Product Type Troffer
Series 2GT, 2GT8, 2GT8-2U, 2GT8-3, 2GT8-4, GT8
Shape Rectangular
Voltage Rating 120, 277, 347, MVOLT
Spec Sheets
A summary of the performance and other technical characteristics of the product.
File Type Document Title View
GT8-1x4_pdf View
GT8-2x2_pdf View
GT8-2x4_pdf View
Technical Files
Installation documents, building information models, etc.
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
2GT8-ceiling-openings_pdf View