Built to disappear into the ceilingThe LUNA RA4-12G is built around a durable
airtight aluminum body with an adjustable gimbal, so the trim sits flush while the optic tilts to aim light where the room needs it. An anodized blue heat sink inside the housing keeps airflow moving around the LED light source, which is how an integrated
4" recessed LED fixture holds its output year after year. The brushed nickel trim of the RA4-12G-90BN blends with stainless appliances, nickel faucets and modern hardware, and because the unit is approved for
wet locations and for direct contact with insulation, the same fixture can run from a dry hallway straight into a shower ceiling or a covered entry.
Light quality you can seeThe 12 watt module produces up to
1035 lumens of uniform intensity at
92 lumens per watt, with a typical
CRI of 90 — the level that makes cabinetry, tile, textiles and food look the way they should. The
3000 K warm white colour temperature is the go-to for living spaces and hospitality settings, and the lens delivers a 40° beam spread that keeps scallops tidy on walls and pools of light even on floors. Tilting the gimbal up to 20° turns any of these downlights into a discreet accent light for art, shelving or a feature wall.
Technical specificationsApplication: Ceiling Recess Mount
Approved location: Wet / Insulated Ceilings
Wattage: 12W
Lumens: 1035
Lumens per watt: 92
CCT: 3000 K
CRI: 90
Beam angle: 40°
Input: 100-135V AC, 60Hz
Dimming: Yes, 100%-10%, TRIAC/ELV
Power factor: 0.95
Class II: Yes
Hole cut: Ø 4 3⁄16" (106mm)
Dimensions: 5 1⁄16" (128mm) diameter, 1 7⁄8" (46mm) height
Operating temperature: -20°C~40°C (-4°F~104°F)
Certification: cETLus, Energy Star, LM79, LM80
Projected life: 70% @ 50,000 hrs
Warranty: Lifetime
Finish: Brushed Nickel (BN)
Wiring and installationThe extruded aluminum hardwire box houses a
300 mA dimmable Class II electronic LED driver and offers three "Quick connect" push-in terminals for fast, tool-friendly wiring. An 18" 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. Cut a Ø 4 3⁄16" (106 mm) hole, push the two spring-loaded clips through, and the fixture grips any ceiling material — drywall, plaster or panel. The assembly is suitable for insulated ceiling applications and has been tested with insulation up to R60; in spray foam and loose fill applications, a vapour barrier extender (VBE) is recommended. Pair it with standard
TRIAC/ELV dimmers for smooth 100%-10% control.
Where it fits and what's next to itThink open-concept kitchens and island runs, hallways, walk-in closets, basement renovations, bathroom and shower ceilings, covered porches, condo lobbies, boutiques, salons, dental clinics and small offices — anywhere a discreet
gimbal recessed light beats a bulky surface fixture. Accessories such as pre-mounting plates, new construction plates and mounting kits, reducer rings and vapour barrier extenders are sold separately. Matching options in the same family include the
4" LUNA LED round gimbal recessed fixture RA4-12G-90WH, the
4" LUNA LED round gimbal recessed fixture RA4-12G-90BK, the tunable
4" LUNA LED round gimbal recessed fixture RA4-12G-DTW-90BN and the deeper-set
4" LUNA LED round regressed gimbal recessed fixture RA4-12RG-90BK. The full technical PDF (RA4-12G-90BN Spec Sheet) is available in the Documentation tab for your dimmer list, dimensions and certifications.