lighting products

DIF 552 R Series

The DIF 552 R is a prismatic troffer kit offered in multiple sizes. It was redesigned to reduce costs and increase its versatility for commercial applications by accommodating both LED tubes and LED modules. Its body features a technical post-painted finish with 92% reflectance to deliver outstanding light distribution, lowering maintenance and extending fixture lifetime.


Suitable for interior applications including hospitality, healthcare, education, retail, and office environments.


  • Recess-mounted installation.
  • Accommodates 3 x T8 lamps or LED modules.
  • Optional driver box system for driver installation.
  • Electrostatically applied polyester powder coat paint in Matte White finish with 92% reflectivity.
  • Body is formed and welded in 26-gauge steel (0.45mm).
  • Driver box system is 23-gauge steel (0.60mm).
  • Custom LED pattern holes available (contact Customer Service).


Length 23.74”
Width 23.74”
Height 3.07”
H2 4.65”

Length 47.71”
Width 23.74”
Height 3.07”
H2 4.65”

23-gauge steel

Post painted matte white with minimum
92% reflectivity