Built to last, built to aimThe Luna 3" square gimbal is made around a durable airtight aluminum body with an adjustable gimbal, so the optic tilts inside the square trim instead of poking out of the ceiling plane. An anodized blue heat sink sits behind the LED to maximize airflow and keep the light source cool, which is exactly what protects colour consistency and lumen output over the years. The brushed nickel trim of this RA3S-7G-27K-90BN version pairs beautifully with stainless appliances, nickel faucets and warm wood cabinetry, and the square shape lines up cleanly with tile joints, ceiling grids and millwork — a detail that makes a
square recessed downlight look intentional rather than improvised.
Light quality and dim-to-warmThe 7 watt LED module produces up to 745 lumens with uniform intensity and a typical CRI of 90, a level of colour rendering that flatters skin tones, food, fabrics and paint finishes. The fixture starts at 3000 K and shifts down to 1800 K as you dim, mimicking the way a halogen or incandescent lamp warms up when lowered. The lens shapes a 45° beam spread, tight enough to accent a backsplash or a piece of art, wide enough to overlap comfortably when fixtures are spaced in a row. Combined with the gimbal, that beam becomes a real design tool for wall washing, grazing textures and highlighting a dining table.
Technical specificationsWattage: 7W
Lumens: 745
Efficacy: 96 lumens per watt
CCT: 3000 K~1800 K (dim-to-warm)
CRI: 90
Beam angle: 45°
Input: 100-135V AC, 50/60Hz
Dimming: Yes, TRIAC/ELV
Hole cut: Ø 2 3/4" (70mm)
Power factor: 0.95
Projected life: 70% @ 33,000 hrs
Operating temperature: -40°C+40°C (-40°F+104°F)
Approved location: Wet / insulated ceilings
Certification: cETLus, Class II, LM79, LM80
Application: Ceiling recess mount
Warranty: Lifetime
Wiring and installationPower comes from an extruded aluminum hardwire box housing a 170mA dimmable class II electronic driver, with three quick-connect push-in terminals for fast wiring — no wire nuts, no wrestling in the ceiling cavity. 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, so the box can be tucked aside through the same opening. Two spring-loaded clips hold the housing in almost any ceiling material, the cut-out is Ø 2 3/4" (70mm), and because the unit is approved for direct contact with insulation and rated for wet locations, it can go into insulated attic ceilings, covered entries and shower zones. Use industry standard TRIAC/ELV dimmers for smooth dim-to-warm control.
Applications, matching fixtures and documentationPicture it over a kitchen island aimed at the counter, tilted toward a brick wall in a loft, lined up in a hallway of a condo tower, or pointed at shelving in a boutique or clinic waiting area — a 3" aperture keeps commercial ceilings uncluttered while still delivering usable light. Keep the look consistent across a project by mixing trim colours from the same family:
RA3S-7G-27K-90BK in black and
RA3S-7G-27K-90WH in white, or the same square gimbal in other colour temperature versions such as
RA3S-7G-30K-90BN. Accessories are sold separately, including a pre-mounting plate with driver attachment clip for 3" Luna LED fixtures, a new construction mounting kit with hanger bars, brackets and screws, and vapour barrier extenders for new construction or remodel work. The full technical PDF spec sheet for RA3S-7G-27K-90BN is in the Documentation tab.