RAB Lighting SWISHFA Field Adjustable Center Basket LED Troffer, 1x4 / 2x2 / 2x4, 19-49W Selectable, 3500K/4000K/5000K, Up to 5882lm, 120-277V, Standard & Battery Backup, White
Available in stock (200)
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Estimated delivery: Jul 14 - Jul 20
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Shipping & Returns
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).
We process payments securely and do not store credit card information.
Description
Description
RAB Lighting SWISHFA Field Adjustable Center Basket LED Troffer — 1x4, 2x2 & 2x4, 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 — 1x4 (SWISHFA1X4-D10), 2x2 (SWISHFA2X2-D10), and 2x4 (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: 1x4 & 2x2: 39W/29W/19W; 2x4: 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: 1x4 (11.75”×47.75”), 2x2 (23.75”×23.75”), and 2x4 (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
- 1x4 — Standard (SWISHFA1X4-D10): 39W: 5,668lm | 29W: ~4,200lm | 19W: ~2,800lm — 11.75”×47.75”×4.0”
- 1x4 — Battery Backup (SWISHFA1X4-D10-E2): Same output; adds 90-min emergency system with test button
- 2x2 — Standard (SWISHFA2X2-D10): 39W: 4,913lm | 29W: ~3,600lm | 19W: ~2,400lm — 23.75”×23.75”×4.125”
- 2x2 — Battery Backup (SWISHFA2X2-D10-E2): Same output; adds 90-min emergency system with test button
- 2x4 — Standard (SWISHFA2X4-D10): 49W: 5,882lm | 39W: ~4,600lm | 29W: ~3,400lm — 47.75”×23.75”×4.0”
- 2x4 — 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)
Frequently Asked Questions
Do you offer free shipping?
Do you offer free shipping?
Yes, we provide free shipping on orders over $99 delivered within the lower 48 states. However, this excludes items that are 48" or longer and commercial lighting fixtures.
For more information, refer to our shipping policy.
What is your return policy?
What is your return policy?
If you're not happy with your purchase, you can return or exchange it within 60 days after it's delivered. To be eligible for a return, please ensure the item is in its original condition (just as you received it), including all packaging, manuals, and accessories. You'll also need your receipt or proof of purchase.
While original shipping fees aren't refundable, we will cover the return shipping costs if the return is necessary because of our mistake (like sending the wrong item) or a product defect. Otherwise, the customer is responsible for return shipping expenses. Keep in mind that restocking fees might be applied if the returned item doesn't meet the required conditions.
For more information, refer to our return policy.
Are there any restrictions on coupon codes?
Are there any restrictions on coupon codes?
Yes, some restrictions apply. Our promotional coupon codes are valid for thousands of regular priced items across our store.
However, coupon codes are generally not applicable to the following:
- Items that are already on sale, on clearance, or otherwise advertised with a discounted price.
- Products from the following brands: Fanimation, George Kovacs, Metropolitan Lighting, Minka Aire, Minka-Lavery, and The Great Outdoors.
Any applicable discount will be automatically calculated on all eligible items in your cart during checkout.
Do your products come with a warranty?
Do your products come with a warranty?
Yes, all products sold by Bees Lighting are brand new and covered by the manufacturer's warranty. The warranty period and terms vary by manufacturer and product.
Do you offer special pricing for lighting professionals?
Do you offer special pricing for lighting professionals?
Yes, we do! Our Bees Lighting Pro program is our B2B Trade Program designed specifically for interior designers, architects, builders, contractors, electricians, and other industry professionals. Members receive access to exclusive pricing and dedicated support to help streamline their projects.
To learn more and apply, please visit our Bees Lighting Pro page.

