RAB SWISHFA-ISLAND2X4/E Field-Adjustable LED Island Center Basket Troffer — 49W / 39W / 29W Selectable — White — Battery Backup
Available in stock (100)
About this item
About this item
- 5,561 lm Max — 49W / 39W / 29W Selectable — 125.5 lm/W Peak Efficacy: Field-selectable wattage via selector switch — run full 49W / 5,561 lm for standard commercial spaces or dial down to 29W at 125.5 lm/W for lower-demand zones. Factory default: 39W @ 4000K. No rewiring required.
- Integrated 90-Minute Emergency Battery Backup — NEC Compliant: Factory-installed battery backup switches automatically upon loss of normal power and maintains illumination for 90 minutes — meets NEC emergency lighting duration requirements without a separate emergency fixture or additional wiring runs.
- UL Listed Damp Location — IC Rated — CCEA Compliant: Rated for dry and damp locations with IC Rating for insulation contact — suitable for commercial office, healthcare, retail, and institutional 2×4 T-grid ceiling applications. Not wet rated.
- DLC Listed — Utility Rebate Eligible: DLC Listed. Qualifies for utility rebate programs across most U.S. markets. Verify eligibility at designlights.org by searching SWISHFA-ISLAND2X4/E prior to specification or purchase.
- Built to Last — 5-Year Warranty · 100,000-Hour L70 Rated Life: Rated for 100,000 hours per IES LM-80 / TM-21 and backed by RAB’s 5-year limited warranty — reducing long-term maintenance and replacement costs in commercial facilities.
Description
Description
RAB SWISHFA-ISLAND2X4/E Field-Adjustable LED Island Center Basket Troffer — 49W / 39W / 29W Selectable — White — Battery Backup
The SWISHFA-ISLAND2X4/E is a field-adjustable LED island center basket troffer with integrated 90-minute emergency battery backup, 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/E to confirm qualification status prior to specification or purchase. Upon loss of normal power, the fixture switches to battery backup and maintains illumination for 90 minutes, wired for 120–277V. 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.
- Emergency Battery Backup: Factory-integrated 90-minute emergency backup — switches automatically upon loss of normal power. Wired for 120–277V. Meets NEC emergency lighting duration requirements.
- Dimming: 0-10V continuous dimming, dims to 10%.
- Voltage & Driver: Class 2 constant current driver, 120–277V AC, 50/60Hz.
- 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).
- 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 combination suffixes available — /LC/E · /LCS/E · /LCB/E · /MVS/E. Order by suffix at time of purchase.
Performance & Light Output
Performance data is identical to the base SWISHFA-ISLAND2X4 — the /E suffix adds emergency backup without affecting 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/E supports factory-configured control and sensor options combinable with the /E battery backup suffix, selected at time of order:
- /E — Battery Backup only: 90-minute emergency backup, no additional controls.
- /LC/E — Lightcloud® Controller + Battery Backup: Wireless mesh controller with 90-min emergency backup.
- /LCS/E — Lightcloud® Sensor + Battery Backup: Occupancy/vacancy sensor with Lightcloud mesh + 90-min backup.
- /LCB/E — Lightcloud® Blue Sensor + Battery Backup: Bluetooth mesh sensor + 90-min backup.
- /MVS/E — Microwave Occupancy Sensor + Battery Backup: Microwave occupancy sensor + 90-min backup. MVSREM remote sold separately.
All control options are factory-configured — select the required suffix at time of order. Standard 0-10V dimming is included on all configurations.
Electrical
Class 2 constant current driver, 120–277V AC, 50/60Hz. 0-10V dimming, dims to 10%. Emergency battery backup wired for 120–277V. 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. Dimensions: 47-5/16″ L × 23-3/4″ W × 2-25/32″ H (2×4 nominal). Weight: 15.2 lb (base fixture — refer to spec sheet for confirmed /E weight with battery module).
Installation & Mounting
Mounts recessed into standard 2×4 T-grid ceiling system. Emergency backup wiring connects to the line-voltage feed — follow local electrical code for emergency egress lighting requirements. 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/E 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/E to confirm qualification status prior to specification or purchase. CCEA Compliant. IC Rated. RoHS Compliant. 5-year warranty per rablighting.com/warranty.
Typical Applications
- Life-Safety & Egress-Required Commercial Spaces: Integrated 90-minute battery backup meets NEC emergency lighting duration requirements without a separate emergency fixture — ideal for corridors, lobbies, and exit paths in commercial buildings.
- Healthcare & Educational Facilities: Emergency backup ensures continuous illumination during power outages in critical care, exam, and occupied classroom environments.
- Office & Conference Rooms: Selectable 3500K/4000K CCT with emergency backup in a single 2×4 troffer SKU — simplifies specification for code-compliant retrofits.
- Retail & Hospitality Interiors: Island center basket aesthetic maintains design intent while providing compliant emergency illumination for customer-facing environments.
- Institutional Renovations: 120–277V universal voltage and selectable wattage simplify drop-in retrofits with built-in emergency compliance across mixed electrical infrastructure.
What's Included
- 1× RAB SWISHFA-ISLAND2X4/E Field-Adjustable LED Island Center Basket Troffer with Battery Backup — White
- Mounting hardware for T-grid recessed installation
- Integrated 90-minute emergency battery backup module (factory-installed)
Specifications
Specifications
Dimensions
Style & Materials
Characteristics & Features
Electrical Information
Item Details
Warranty & Certifications
Shipping & Returns
Shipping: Enjoy free standard shipping on most orders over $99. Exclusions apply for oversized & commercial items. We ship to the contiguous 48 United States.
Returns: We offer a 60-day return window for most items. Products must be in their original, unused condition with all packaging. Exclusions: Special orders, clearance, and custom items.
Frequently Asked Questions
Is the SWISHFA-ISLAND2X4/E wet rated and what are its operating temperature limits?
Is the SWISHFA-ISLAND2X4/E wet rated and what are its operating temperature limits?
How do I adjust the wattage and color temperature on the SWISHFA-ISLAND2X4/E?
How do I adjust the wattage and color temperature on the SWISHFA-ISLAND2X4/E?
What control and sensor options are available for the SWISHFA-ISLAND2X4/E?
What control and sensor options are available for the SWISHFA-ISLAND2X4/E?
What is the difference between the SWISHFA-ISLAND2X4 and the SWISHFA-ISLAND2X4/E?
What is the difference between the SWISHFA-ISLAND2X4 and the SWISHFA-ISLAND2X4/E?
Is the SWISHFA-ISLAND2X4/E eligible for utility rebates and what ceiling height is recommended?
Is the SWISHFA-ISLAND2X4/E eligible for utility rebates and what ceiling height is recommended?

