RAB SWISHFA-ISLAND2X4 Field-Adjustable LED Island Center Basket Troffer — 49W / 39W / 29W Selectable — White

The SWISHFA-ISLAND2X4 is a field-adjustable LED island center basket troffer delivering up to 5,561 lumens at 49W with selectable wattage of 49W / 39W / 29W and selectable CCT of 3500K and 4000K (factory default: 39W @ 4000K). It operates on 120–277V with 0-10V dimming to 10%, carries a UL Listed rating suitable for dry and damp locations, and is DLC Listed — individual SKU qualification (Standard or Premium) varies by configuration; refer to the DLC Qualified Products List at designlights.org and search by model number SWISHFA-ISLAND2X4 to confirm qualification status prior to specification or purchase. Backed by a 5-year warranty.

Key Features

• Selectable Wattage — 49W / 39W / 29W: Field-adjustable via selector switch on the fixture body. Factory default: 39W. No rewiring required.
• Maximum Lumen Output: 5,561 lm at 49W / 4000K.
• Peak Efficacy: 125.5 lm/W at 29W / 4000K.
• CRI: 83 across all wattage and CCT settings.
• Selectable CCT — 3500K / 4000K: Field-adjustable via selector switch on the fixture body. Factory default: 4000K. No lamp change or fixture replacement required.
• Dimming: 0-10V continuous dimming, dims to 10%.
• Voltage & Driver: Class 2 constant current driver, 120–277V AC, 50/60Hz. Universal voltage — single SKU covers standard commercial electrical infrastructure.
• Location Rating: UL Listed — suitable for dry and damp locations. IC Rated. CCEA Compliant.
• Operating Temperature: Cold weather start rated to -20°C (-4°F). Suitable for unconditioned commercial interiors.
• Certifications: UL Listed | DLC Listed | CCEA Compliant | IC Rated | RoHS Compliant.
• Rated Life: 100,000 hours per IES LM-80 / TM-21.
• Warranty: 5-year limited warranty covering light output, color stability, driver performance, and fixture finish.
• Control & Sensor Options: Factory-configured suffixes available — /LC · /LCS · /LCB · /MVS · and combination /E emergency backup variants. Order by suffix at time of purchase.
• Fixture Format: 2×4 island center basket troffer — fits standard T-grid ceiling systems. Frosted polystyrene lens for uniform, glare-controlled illumination.

Performance & Light Output

At 29W: 3,537 lm (3500K / 123.4 lm/W), 3,579 lm (4000K / 125.5 lm/W)
At 39W: 4,623 lm (3500K / 120.1 lm/W), 4,699 lm (4000K / 122.6 lm/W)
At 49W: 5,484 lm (3500K / 116.5 lm/W), 5,561 lm (4000K / 118.8 lm/W)

CRI: 83 across all settings. Rated life: 100,000 hours per IES LM-80 / TM-21.

Smart & Control Features

The SWISHFA-ISLAND2X4 supports multiple factory-configured control and sensor options, selected at time of order via model suffix:

• (Blank) — Standard: 0-10V dimming only; no additional controls.
• /LC — Lightcloud® Controller: Wireless network controller for Lightcloud mesh lighting control system.
• /LCS — Lightcloud® Sensor: Integrated occupancy/vacancy sensor with Lightcloud mesh control.
• /LCB — Lightcloud® Blue Sensor: Bluetooth-enabled Lightcloud sensor for wireless mesh commissioning.
• /MVS — Microwave Occupancy Sensor: Integrated microwave sensor for occupancy-based dimming. MVSREM remote sold separately.
• /E — Battery Backup: 90-minute emergency backup, wired 120–277V. See SWISHFA-ISLAND2X4/E listing.
• Combination suffixes: /LC/E · /LCS/E · /MVS/E · /LCB/E — battery backup combinable with all control options.

All control options are factory-configured — select the required suffix at time of order. Standard 0-10V dimming is included on all configurations. MVSREM remote accessory available for field adjustment of microwave sensor settings on /MVS models.

Electrical

Class 2 constant current driver, 120–277V AC, 50/60Hz. 0-10V dimming, dims to 10%. Mercury-free, UV-free, RoHS compliant.

Construction

Housing: sheet metal and extruded aluminum, white painted finish. Lens: frosted polystyrene for uniform, glare-controlled light distribution. Reflector: high-reflectance white aluminum. UL Listed for dry and damp locations. IC Rated — safe for insulation contact installations. Dimensions: 47-5/16″ L × 23-3/4″ W × 2-25/32″ H (2×4 nominal). Weight: 15.2 lb.

Installation & Mounting

Mounts recessed into standard 2×4 T-grid ceiling system. Suitable for commercial interiors at standard floor-to-ceiling heights of 8–14 ft. Optional accessories sold separately:

• SMKPANEL2X4 — LPanel 2×4 Surface Mounting Kit, White
• RMKPANEL2X4 — LPanel 2×4 Recessed Mounting Kit, White
• MVSREM — Remote for Microwave Sensor (/MVS models)

Certifications & Rebates

UL Listed — suitable for dry and damp locations. DLC Listed — individual SKU qualification (Standard or Premium) varies by configuration. Refer to the DLC Qualified Products List (QPL) at designlights.org and search by model number SWISHFA-ISLAND2X4 to confirm qualification status prior to specification or purchase. CCEA Compliant. IC Rated. RoHS Compliant. 5-year warranty per rablighting.com/warranty.

Typical Applications

• Office & Conference Rooms: Selectable 3500K/4000K CCT adapts to task lighting and presentation environments in a single 2×4 SKU without fixture replacement.
• Educational Facilities: Damp-rated construction and field-adjustable wattage allow specification across classrooms, corridors, and common areas from a single SKU.
• Healthcare & Clinical Spaces: CRI 83 and selectable CCT support accurate visual assessment and patient comfort across exam and waiting areas.
• Retail & Hospitality Interiors: Island center basket aesthetic and frosted lens deliver uniform, glare-controlled illumination for high-end commercial interiors.
• Institutional Renovations: 120–277V universal voltage and selectable wattage simplify drop-in retrofits across mixed electrical infrastructure without driver replacement.

What's Included

• 1× RAB SWISHFA-ISLAND2X4 Field-Adjustable LED Island Center Basket Troffer — White
• Mounting hardware for T-grid recessed installation