Built to last in the ceilingThe body of this
3.5" LUNA LED recessed fixture is a durable airtight fixed aluminum housing — no separate can, no rattling trim ring. Inside it sits an anodized blue heat sink that keeps air moving across the LED light source, which is exactly what protects lumen output and colour consistency over the long haul. Mounting is quick: two spring-loaded clips grip the ceiling and work with essentially any ceiling material, from drywall to wood to panel. The hole cut is Ø 3 5/8" (92 mm), overall dimensions are 4 3/8" (111 mm) and 3 3/8" (85 mm) with a 4 3/16" (106 mm) and 3 1/16" (78 mm) trim profile and only 15/16" (34 mm) of depth at the fixture, so it slips into tight plenums and shallow ceiling cavities where a traditional housing will not go.
Light quality and dim-to-warmThe 12 watt LED module maintains uniform intensity and produces up to 600 lumens with a typical CRI of 90 — a real upgrade for kitchens, bathrooms and retail displays where colour accuracy sells the space. The 38° beam spread from the lens is the sweet spot between general ambient light and gentle accenting, so a row over a counter gives you even coverage without hot spots. Best of all, this is a
dim-to-warm fixture: as you lower the dimmer, the colour temperature travels from 3000 K to 2000 K, so evening light in a dining room or lounge becomes genuinely warm and flattering instead of dull grey.
Electrical and installation detailsPower comes from an extruded aluminum hardwire box housing a 300 mA dimmable Class II electronic LED driver with 100-135V AC, 60 Hz input and a power factor greater than 0.90. An 18" (457 mm) FT6-rated cable with a DC 2.1 connector links the driver to the fixture and is approved for use in plenums and suspended ceilings. Three "Quick connect" push-in terminals make line, neutral and ground wiring fast — a real time-saver when you are installing twenty of them in one afternoon. The fixture is suitable for wet locations, approved for direct contact with insulation, rated for operating temperatures of -20°C to 40°C (-4°F to 104°F) and carries cETLus certification with Class II construction.
Technical specificationsSKU: RA35S-12F-27K-90BN
Brand: LITELINE
Application: Ceiling recess mount
Approved location: Wet / insulated ceilings
Wattage: 12W
Lumens: 600
Lumens per watt: 57
CCT: 3000 K~2000 K (dim-to-warm)
CRI: 90
Beam angle: 38°
Input: 100-135V AC, 60Hz
Dimming: Yes — TRIAC/ELV
Hole cut: Ø 3 5/8" (92 mm)
Power factor: >0.90
Projected life: 70% @ 33,000 hrs
Operating temperature: -20°C~40°C (-4°F~104°F)
Finish: Brushed Nickel
Certification: cETLus
LM79 / LM80: Yes
Warranty: Lifetime
Applications, compatibility and documentationUse these
square LED pot lights in a grid over an open-concept kitchen, in pairs flanking a bathroom mirror, down a hallway at even spacing, in a covered entry or soffit thanks to the wet-location rating, or in a boutique fitting room where CRI 90 keeps fabrics honest. Pair them with TRIAC or ELV wall dimmers to unlock the dim-to-warm curve; LITELINE publishes a compatible dimmer list for the LUNA line. Accessories are sold separately and include vapour barrier extenders for new construction and remodel work, a 3 5/8" round pre-mounting plate with driver attachment clip for 3½" LUNA LED fixtures, and a new construction mounting kit with hanger bars, brackets and screws. Mixing finishes across one project is easy with the
black and
white versions of this fixed square fixture, and where you need to aim light at art or a feature wall, the
3.5" Luna LED square regressed gimbal fixture shares the same aperture look. The full technical PDF spec sheet for RA35S-12F-27K-90BN is available in the Documentation tab for your submittals and permit package.