Lightline Wall Wash 2 1/2" ApertureLWR9 2' T5HO/T5, LWR9 4' T5HO/T5Housing is formed from painted cold - rolled steel. Painted parts finished with high - gloss baked enamel.Extruded aluminum, specular asymetric reflector system. Black metal diffuser with round holes. Lower extruded aluminum reflector.Specify 120 volt, 277 volt, or 347 volt. UL and C-UL listed and labeled. Nominal 2 1/2" aperture. 2' and 4' lengths available. For grid and gyp-board ceilings.Refer to specification data sheet for specific product information