Built to last, built to disappear into the ceilingThe LUNA RA4-12G is a 4" round
gimbal recessed light with a durable airtight aluminum body and an adjustable gimbal that tilts to aim light where you want it. An anodized blue heat sink sits behind the LED module to maximize airflow and keep the light source cool, which is exactly what protects colour and output over the years. The compact housing measures 5 1⁄16" (128mm) across the trim and 1 7⁄8" (46mm) high, with a 3 3⁄8" (85mm) body and a 15⁄16" (34mm) gimbal depth, so it fits tight ceiling cavities where a traditional can would never go. This SKU comes in a brushed nickel trim finish that blends beautifully with stainless appliances and modern hardware.
Light quality you can seeA
typical CRI of 90 means whites stay crisp and colours stay honest — a detail you notice immediately on kitchen backsplashes, hardwood floors, artwork and retail merchandise. The fixture puts out up to 1035 lumens from 12 watts (92 lumens per watt) in a warm 3000 K colour temperature, and the lens delivers a controlled 40° beam spread that works for both general ambient lighting and accent work. Because output holds uniform intensity across the lens, rows of fixtures read evenly instead of showing hot spots.
Electrical, dimming and installationPower comes from an extruded aluminum hardwire box housing a 300mA dimmable class II electronic LED driver with 100-135V AC input. 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. Three
quick connect push-in terminals make wiring fast on site, and two spring loaded clips hold the fixture in any ceiling material. Cut a Ø 4 3⁄16" (106mm) hole, connect, push up — done. Dimming runs from 100% to 10% with industry standard
TRIAC/ELV dimmers, and operating temperature is rated -20°C~40°C (-4°F~104°F). The fixture is suitable for insulated ceiling applications, approved for direct contact with insulation and tested with insulation up to R60; a vapour barrier extender is recommended in spray foam and loose fill applications.
Technical specificationsModel: RA4-12G-DTW-90BN
Application: 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, TRIAC/ELV, 100%-10%
Power factor: 0.95
Hole cut: Ø 4 3⁄16" (106mm)
Class II: Yes
Certification: cETLus, Energy Star, LM79, LM80
Projected life: 70% @ 50,000 hrs
Warranty: Lifetime
Applications, compatible products and documentationThink kitchens and islands, bathrooms and showers (wet location rated), basements, stairwells, hallways, covered entries and porches, plus offices, clinics, boutiques and restaurants where
commercial recessed LED lighting needs to look sharp and stay maintenance-free. Accessories designed for 4" LUNA LED fixtures include the P-4020 pre-mounting plate and P-4020NC new construction plate with driver attachment clip, the P-4024 24" pre-mounting plate, the P-NCMK-1 new construction mounting kit with hanger bars, and VBE-1 to VBE-4 vapour barrier extenders for new construction and remodel work, along with RA4-XLRING reducer rings for 4" LUNA fixtures (accessories sold separately). Matching the rest of the ceiling is easy with the
4" LUNA gimbal fixture RA4-12G-90BN, the
RA4-12G-30K-90WH in white or the deeper-set
4" LUNA regressed gimbal fixture RA4-12RG-90BK. The full technical PDF spec sheet is available in the Documentation tab for your electrician, inspector or lighting layout.