Built to complete the RT05 platform
The LS-RT05-LVR-BK is not a universal bezel — it is the dedicated louver trim for the LumenstarLED RT05 screwless step light family, made to mate with the RT05HV and RT05LV light engines. "Screwless" is the whole point of this system: the trim covers the opening with no visible fasteners on the face, so the installed fixture reads as a single clean rectangle rather than a collection of parts. The louver blades across the aperture do two jobs at once. Visually, they give the opening structure and depth instead of a flat bright rectangle. Optically, they cut the direct view of the light source, so people walking a stair or a corridor see the lit surface, not the emitter.
Light quality and comfort
The RT05 engine this trim dresses delivers 145 lumens with a CRI greater than 90, which means skin tones, wood treads, stone and paint colours stay true under it — a real difference in galleries, hospitality spaces and finished basements. Colour temperature options on the platform include 3000K warm white and 4000K natural white, plus RGB and RGBW versions, and the engines are dimmable. Because the louver shields the aperture, you keep that high-CRI light on the floor and off people's eyes, which is exactly what you want in low-level lighting where fixtures sit at knee or ankle height.
Technical specifications
SKU: LS-RT05-LVR-BK
Brand: LUMENSTARLED
Type: louver trim for RT05HV and RT05LV light engines
Finish: black (RT05 trim colours: black, brushed nickel, white)
Fixture dimensions (L x W x H): 120 x 74 x 38 mm (4 11/16 x 2 7/8 x 1 1/2")
Hole cutout size: 4-3/4" × 2-7/8" (121 × 73 mm)
Platform voltage: 100V AC / 12V AC/DC
Platform wattage: 2W / 2.2W
Light output: 145 lumens
CRI: >90
IP rating: IP67
Operating temperature: -20°C ~ +45°C
Wire length: 12" (30 cm)
Dimmable: yes
Certifications: c ETL us Listed
Warranty: 3-year
Installation and electrical notes
Plan the rough-in around the 4-3/4" × 2-7/8" (121 × 73 mm) cutout and confirm which engine the job calls for before ordering trims: the RT05HV runs at 100V AC while the RT05LV runs at 12V AC/DC and needs a suitable low-voltage supply upstream. Each engine ships with a 12" (30 cm) wire lead, so position junction boxes or driver runs accordingly. The IP67 rating and the -20°C to +45°C operating range mean the RT05 can go outdoors on soffits, stair risers and retaining walls as well as indoors — the louver trim simply gives that outdoor opening a discreet black face instead of a bright white one. One trim per light engine; order matching quantities so nothing holds up final trim-out.
Applications and documentation
Think condo stairwells, multi-unit corridors, restaurant entry steps, hotel hallways, retail thresholds, home theatre aisles and exterior deck stairs. On dark ceilings, charcoal soffits and exposed black structure, this black louver trim lets the fixture disappear; on light surfaces it becomes a deliberate graphic accent. Because the RT05 is a standardized platform, mixing black louver trims with brushed nickel or white ones across zones is an easy way to code different areas while keeping a single cutout and a single engine on the order. The full technical PDF for the RT05 screwless step light is posted in the Documentation tab — download it for cutout dimensions, voltage options and certification details before you rough in.