Built to last, built to install fastThe LUNA 3.5" starts with a durable airtight fixed aluminum body and an anodized blue heat sink that keeps air moving around the LED light source — the single biggest factor in how long a
recessed LED downlight keeps its output. Two spring-loaded clips let the fixture attach to any ceiling material, which is why it is so popular for retrofit work: cut a Ø 3 5⁄8" (92 mm) hole, feed the driver box into the cavity, squeeze the clips and the
pot light seats flush. Overall the unit measures 4 3⁄8" (111 mm) and 3 3⁄8" (85 mm) across, with a 4 3⁄16" (106 mm) and 3 1⁄16" (78 mm) profile and a 15⁄16" (34 mm) depth detail at the trim, and the brushed nickel ring finishes the ceiling cleanly.
Light quality you can seeThe 12 watt LED module maintains uniform intensity and produces up to 600 lumens with a typical CRI of 90, so colours read true instead of washed out — an obvious win over old halogen cans while drawing a fraction of the energy. The lens delivers a controlled 38° beam spread, tight enough to keep light where you aim it over an island, a vanity or a display shelf, and wide enough to space fixtures comfortably through a hallway or open-plan room. LM79 and LM80 testing is documented, and the projected life is rated at 70% @ 33,000 hrs.
Electrical and installation detailsPower comes from a 300 mA dimmable Class II electronic LED driver with 100-135V AC input, mounted in an extruded aluminum hardwire box. Three "Quick connect" push-in terminals make wiring quick and tool-light, and the 18" (457 mm) FT6-rated cable with DC 2.1 connector between driver and fixture is approved for use in plenums and suspended ceilings. Dimming technology is TRIAC/ELV, compatible with industry standard dimmers — always confirm your dimmer against the manufacturer's compatibility list before you commit to a full house. Operating temperature range is -20°C~40°C (-4°F~104°F), power factor is greater than 0.90, and the fixture is Class II, cETLus certified, suitable for
wet locations and approved for direct contact with insulation. Warranty: lifetime.
Technical specificationsModel: RA35-12F-40K-90BN
Application: Ceiling Recess Mount
Approved Location: Wet / Insulated Ceilings
Wattage: 12W
Lumens: 600
Lumens per Watt: 57
CRI: 90
Beam Angle: 38°
Input: 100-135V AC, 50/60Hz
Dimming: Yes — TRIAC/ELV
Hole Cut: Ø 3 5⁄8" (92mm)
Power Factor: >0.90
Projected Life: 70% @ 33,000 hrs
Certification: cETLus
Trim Finish: Brushed Nickel
Warranty: Lifetime
Applications, accessories and documentationThink kitchen perimeters and islands, corridors, stairwells, bedrooms, bathrooms and covered exterior soffits at home; changing rooms, waiting areas, offices and small restaurants on the commercial side. Accessories are sold separately and include the P-3520 round pre-mounting plate with driver attachment clip and the P-3520NC round new construction plate for 3½" LUNA LED fixtures, the P-NCMK-1 new construction mounting kit with hanger bars, brackets and screws, the RA35-XLRING-BN reducer ring in brushed nickel (also offered in black and white), VBE-1 to VBE-4 vapour barrier extenders for new construction and remodel work, and the LC-CRTL-DIM-1 smart Wi-Fi dimmer, 120V. For a mixed-temperature project, the same housing is offered as the
3.5" LUNA LED round recessed fixture RA35-12F-40K-90BK in black and the
3.5" LUNA LED round recessed fixture RA35-12F-90BN. The full technical PDF spec sheet is available in the Documentation tab for your submittals and permit package.