Description
RAB Lighting SWISHFA Field Adjustable Center Basket LED Troffer — 1×4, 2×2 & 2×4, Selectable Wattage & CCT, Standard & Battery Backup, 120-277V, White
The RAB Lighting SWISHFA is a premium, volumetric center-basket LED troffer engineered for modern commercial drop ceilings where architectural aesthetics and performance flexibility are both required. Available in three sizes — 1×4 (SWISHFA1X4-D10), 2×2 (SWISHFA2X2-D10), and 2×4 (SWISHFA2X4-D10) — and in both Standard and Battery Backup (-E2) configurations, all models feature field-selectable wattage, selectable 3500K/4000K/5000K CCT, and 0-10V dimming on a universal 120-277V input. The distinctive 4” deep center-basket profile with a frosted polycarbonate lens delivers smooth, volumetric illumination that eliminates the flat appearance of standard troffers. All models are IC rated for direct insulation contact, feature integral T-grid mounting clips, and carry a 100,000-hour L70 lifespan. Battery Backup models add an integrated 90-minute emergency system with a built-in test button for NEC/IBC-compliant egress lighting.
RAB SWISHFA Features
- Center-Basket Volumetric Profile: The 4” deep center-basket design with frosted polycarbonate lens creates smooth, three-dimensional illumination — eliminating the flat, harsh appearance of standard flat-panel troffers.
- Field-Selectable Wattage: 1×4 & 2×2: 39W/29W/19W; 2×4: 49W/39W/29W — set on-site to match illumination and energy targets without rewiring.
- Selectable CCT: Field-adjustable 3500K, 4000K, and 5000K color temperatures via on-driver switch for precise ambiance control in any commercial environment.
- Standard & Battery Backup Options: Standard models for general commercial use; Battery Backup (-E2) models add an integrated 90-minute emergency system with built-in test button and indicator light for code-compliant egress lighting.
- Three Size Options: 1×4 (11.75”×47.75”), 2×2 (23.75”×23.75”), and 2×4 (23.75”×47.75”) — all with a 4” deep center-basket profile for standard T-bar drop ceiling grids.
- IC Rated: Safe for direct contact with building thermal insulation — no clearance required above the ceiling grid.
- High Efficacy: Up to 137 LPW with 85 CRI for accurate color rendering across all wattage and CCT settings.
- 0-10V Dimming: Dims to 10% for compatibility with daylight harvesting sensors and commercial energy management systems.
- Universal Voltage: 120-277V input — no external transformer required for standard commercial grids.
- Integral T-Grid Mounting Clips: Bend-over clips secure the fixture against vibration; support wire holes provided for code-compliant ceiling anchoring.
- 20-Gauge Cold-Rolled Steel Housing: Fully enclosed design minimizes dust accumulation and protects internal LEDs; white powder coat finish integrates cleanly into standard T-bar ceiling grids.
- 100,000-Hour Lifespan: L70-rated LED life with a 5-year warranty minimizes maintenance in commercial installations.
- Damp Location Listed: UL listed for use in standard environmentally controlled interior spaces.
90-Minute Battery Backup (Battery Backup Models)
Battery Backup (-E2) models include an integrated emergency battery system that automatically activates during a power failure, operating the fixture at a reduced lumen level for a minimum of 90 minutes to support safe building evacuation. A built-in test button and indicator light allow routine compliance testing without external equipment. These models comply with NEC and IBC emergency egress lighting requirements. Important: An unswitched hot supply line must be connected to maintain battery charge.
Size & Configuration Options
- 1×4 — Standard (SWISHFA1X4-D10): 39W: 5,668lm | 29W: ~4,200lm | 19W: ~2,800lm — 11.75”×47.75”×4.0”
- 1×4 — Battery Backup (SWISHFA1X4-D10-E2): Same output; adds 90-min emergency system with test button
- 2×2 — Standard (SWISHFA2X2-D10): 39W: 4,913lm | 29W: ~3,600lm | 19W: ~2,400lm — 23.75”×23.75”×4.125”
- 2×2 — Battery Backup (SWISHFA2X2-D10-E2): Same output; adds 90-min emergency system with test button
- 2×4 — Standard (SWISHFA2X4-D10): 49W: 5,882lm | 39W: ~4,600lm | 29W: ~3,400lm — 47.75”×23.75”×4.0”
- 2×4 — Battery Backup (SWISHFA2X4-D10-E2): Same output; adds 90-min emergency system with test button
CCT Options: All models offer 3500K (warm neutral), 4000K (neutral white), and 5000K (daylight) — selectable on-site via on-driver switch.
Typical Applications
- Commercial offices, conference rooms, and open workspaces.
- Retail environments and hospitality corridors.
- Educational institutions and classrooms.
- Healthcare facilities and medical offices.
- Egress corridors and stairwells (Battery Backup models).
- Retrofit and new construction T-bar drop ceiling installations requiring architectural depth.
Performance & Light Output
All SWISHFA models deliver up to 137 LPW with 85 CRI through a frosted polycarbonate lens for smooth, volumetric, glare-free illumination. The 4” center-basket profile creates a premium architectural appearance that distinguishes these fixtures from standard flat-panel troffers. The 100,000-hour L70 lifespan dramatically reduces re-lamping and maintenance costs versus legacy fluorescent troffers.
Electrical & Controls
Each model is powered by a high-efficiency Class 2 driver operating on 120-277V AC with integral surge protection. All configurations include 0-10V dimming leads (dims to 10%) for compatibility with daylight harvesting sensors and commercial energy management systems. Battery Backup models require an unswitched hot supply line to maintain battery charge.
Construction & Durability
The 20-gauge cold-rolled steel housing is finished in white powder coat for clean integration into standard T-bar drop ceiling grids. The fully enclosed design minimizes dust accumulation and protects internal LEDs. IC rated for direct insulation contact and UL listed for damp interior locations.
Installation & Mounting
All models are designed for rapid drop-in installation into standard T-bar ceiling grids using integral bend-over grid clips — no additional hardware required. Support wire holes are provided for code-compliant ceiling anchoring. Battery Backup models require an unswitched hot supply line for proper battery charging. Optional surface mount kits are available separately for hard ceiling installations.
What’s Included
- RAB SWISHFA Center Basket LED Troffer — White (size and configuration selected above)
- Pre-installed Driver Assembly
- Integral T-Grid Mounting Clips
- Emergency Battery Backup Unit with Test Button (Battery Backup models only)
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