Relighting for Parabolics

The RT5™ relight assembly is the ideal solution for renovating obsolete parabolic systems, delivering quality of light and refreshing the space. RT5R volumetric lighting eliminates the parabolic cave effect by delivering the ideal amount of light to walls, cubicles, work surfaces and people.

RT5R is suitable for replacing any 2'x4' parabolic fixture with at least 4-3/8" overall depth. 2RT5R is not specifically designed for lensed troffers. The RT5 relight assembly is recommended for offices, schools, hospitals, commercial and other general lighting applications.

Relighting details (web site).


The relight assembly consists of five component parts that easily install into the host fixture. Compatible with field-installed emergency battery packs.


Luminous characteristics are carefully managed at high angles, providing just enough intensity to deliver the volumetric effect.


Step-dimming (100% to 50%) ballasts are available to provide bi-level switching for increased energy savings using existing wiring and wall switches. SIMPLY5™ options and other dimming options are available for even greater control.

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

Product overview and specifications
Brand Name Lithonia Lighting
Color White
Color Rendering Index 80
Correlated Color Temperature 3000 K, 3500 K, 4100 K, 5000 K
Environment Indoor
Finish Gloss
Light Source Fluorescent
Listings CSA
Mounting Type Recessed
Product Type Retrofit Kit
Series 20RT5R, 2RT5R
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
20RT5R-20X2_PDF View
20RT5R-20X4_PDF View
2RT5R-2X2_PDF View
2RT5R-2X4_PDF View
Technical Files
Installation documents, building information models, etc.
File Type Document Title View
2RTLEDR_Installation_Instructions_pdf View
ES8R-instructions_pdf View
RT5R-instructions_pdf View
RT8RT_RT5RT_Installation_Instructions_pdf View
File Type Document Title View
Acrylic-Polycarbonate-Compatibility_pdf View
File Type Document Title View
Control-Options_pdf View
EL-Options_pdf View
Download brochures, sell sheets, photometry files and other sales tools.
File Type Document Title View
Relight-FAQs_pdf View
rt-brochure_pdf View