RAB SWISH2X2 Field-Adjustable 2x2 Center Basket LED Troffer — 35W/26W/18W Selectable — 3500K/4000K/5000K — White

The RAB SWISH2X2 is a commercial 2x2 SWISH Field-Adjustable Center Basket Troffer engineered to deliver up to 4,703 lumens with field-adjustable 35W/26W/18W power settings and switchable 3500K/4000K/5000K color temperatures. Operating on universal 120–277V electrical systems with 0–10V continuous dimming down to 10%, this luminaire provides an ultra-efficient replacement for legacy 2x2 linear fluorescent recessed ceiling troffers. Built with a UL Listed dry and damp location, IC-Rated, and IP20 construction, it is qualified for maximum commercial utility rebates under DLC 5.1 Premium standards and features a non-vented cold-rolled carbon steel (SPCC) housing, a diffused polystyrene center-basket lens, and Trade Agreements Act (TAA) compliance.

Key Features

• Selectable Wattage: 35W / 26W / 18W — field-adjustable via onboard switch (factory default 35W)
• Maximum Lumen Output: 4,703 lm at 35W (4000K)
• Peak Efficacy: 146.4 lm/W for ultra-efficient commercial operation
• CRI: 82–84 CRI color rendering across all settings
• Color Consistency & Stability: 7-step MacAdam Ellipse binning following ANSI C78.377-2017 standards; LED color temperature is warrantied to shift no more than 200K over a 5-year period
• Selectable CCT: 3500K / 4000K / 5000K — field-adjustable via onboard switch (factory default 4000K)
• Lens & Optics: Diffused Polystyrene center-basket lens for smooth, glare-free illumination
• Dimming: 0–10V continuous dimming standard down to 10% (Lightcloud Blue models offer wireless dimming without a separate 0–10V circuit)
• Voltage: Universal 120–277V AC, 50/60Hz Class 2 constant current driver
• Location & Ceiling Rating: UL Listed for dry and damp locations; IC-Rated for direct contact with ceiling insulation; IP20 rated
• Operating Temperature: -4°F (-20°C) to 104°F (40°C) ambient range
• Certifications: DLC 5.1 Premium Listed, UL Listed, IC-Rated, IP20, TAA Compliant, IESNA LM-79 & LM-80 Tested, RoHS Compliant
• Rated Life: 100,000 hours (L70) per IES LM-80 results and TM-21 calculations
• Warranty: 5-year limited warranty covering light output, color stability, driver performance, and fixture finish — RAB
• Form Factor & Design: Ultra-shallow 1.44" (1 7/16") non-vented housing profile recesses cleanly into 2x2 T-grid ceilings

Performance & Light Output

At 35W (Factory Default): 4,424 lm (3500K / 128.5 lm/W / 83 CRI / 34.4W input), 4,703 lm (4000K / 139.9 lm/W / 84 CRI / 33.6W input), 4,604 lm (5000K / 132.8 lm/W / 82 CRI / 34.7W input).

At 26W: 3,425 lm (3500K / 135.3 lm/W / 83 CRI / 25.3W input), 3,620 lm (4000K / 145.9 lm/W / 84 CRI / 24.8W input), 3,538 lm (5000K / 138.9 lm/W / 83 CRI / 25.5W input).

At 18W: 2,386 lm (3500K / 138.9 lm/W / 83 CRI / 17.2W input), 2,476 lm (4000K / 146.4 lm/W / 84 CRI / 16.9W input), 2,483 lm (5000K / 144.0 lm/W / 83 CRI / 17.3W input).

CRI 82–84 across all configurations. Rated life 100,000 hours (L70) per IES LM-80 results and TM-21 calculations.

Smart & Control Features

The SWISH2X2 includes factory-wired 0–10V dimming control leads for smooth continuous dimming down to 10% on a separate 0–10V DC dimming circuit. Within the SWISH and SWISHAIR family, factory-configured models with integrated Passive Infrared (/PIR) or Microwave (/MVS) occupancy sensors (12VDC, 9 ft to 12 ft max mounting height, 20 ft detection diameter at 9 ft, adjustable via remote MSR1 — sold separately) and RAB Lightcloud Blue Bluetooth Mesh wireless controls (/LCBS with PIR sensor or /LCB/MVS with Microwave sensor; DLC NLC system ID N1XMLOEATB) are available.

Electrical

Powered by a Class 2 constant current driver operating on universal 120–277V AC at 50/60Hz. Delivers high electrical efficiency with a Power Factor of 99.6% at 120V (95.0% at 277V) and Total Harmonic Distortion (THD) of 7.03% at 120V (12.7% at 277V). Integrated 2kV surge protection (2kV L-L / 2kV L/N-G) safeguards internal electronics against transient voltage spikes. Includes pre-wired 0–10V dimming leads (dims down to 10%).

Emergency Battery Backup Options: Factory-configured emergency battery backup models (SWISH2X2/E) operate the LED luminaire for 90 minutes if primary power fails on 120–277V circuits (41°F / 5°C to 104°F / 40°C ambient range) with a Battery Backup Light Loss Factor (LLF) of 0.18 (delivering ~847 emergency lumens at 35W, ~652 lm at 26W, and ~446 lm at 18W based on 4000K nominal output).

Operating current and amp draw across input voltages for branch circuit and breaker loading calculations:

Construction

Housing & Build: Non-vented Cold Rolled Carbon Steel Sheets and Strip (SPCC) housing engineered for recessed 2x2 T-grid ceiling installations.

Location & Environmental Rating: UL Listed for indoor dry and damp locations, IC-Rated for direct contact with building insulation, and IP20 rated. Mercury and UV free with RoHS-compliant components.

Operating Temperature: Minimum starting temperature of -4°F (-20°C) (41°F / 5°C for /E emergency battery models); operating ambient temperature range of -4°F (-20°C) to 104°F (40°C).

Lens & Optics: Diffused Polystyrene center-basket diffuser engineered for uniform, glare-free architectural illumination.

Finish: High-durability white finish formulated for long-lasting color stability.

Dimensions & Weight: 23.75" L × 23.75" W × 1.44" H (23 3/4" × 23 3/4" × 1 7/16"; 18 11/16" × 7" center lens). Fixture weight: 8.8 lbs.

Installation & Mounting

Standard Mounting: Recessed directly into standard 2x2 T-grid drop ceilings with an ultra-shallow 1.44-inch (1 7/16") non-vented housing profile (for HVAC air-return ceilings, see vented model SWISHAIR2X2).

Accessories (Sold Separately):

• Sensors & Controls: MSR1 (Multi-Sensor Remote Control, sold separately — required to adjust settings on non-Lightcloud Blue /PIR and /MVS sensor models)
• Lightcloud Enterprise Bridge/Gateway: XDIM/BRIDGE/LCB and LCGATEWAY (sold separately for adopting Lightcloud Enterprise features)

Certifications & Rebates

• DLC 5.1 Premium Listed: Qualifies for the highest tier of utility rebate incentives across regional commercial energy programs. To confirm rebate eligibility with your local utility provider, visit designlights.org and search DLC Product ID S-M443P3.
• UL Listed: Certified for indoor dry and damp locations per UL standards.
• IC-Rated: Approved for direct contact with ceiling insulation.
• TAA Compliant: Product of Cambodia and a designated-country end product that complies with the Trade Agreements Act (TAA) for federal, municipal, and GSA schedule procurement.
• IESNA LM-79 & LM-80 Tested: Luminaire and LED components tested by an independent laboratory per IESNA LM-79 and LM-80 standards.
• RoHS Compliant: Mercury and UV free with RoHS-compliant components.

Typical Applications

• Commercial Offices & Conference Rooms — Diffused polystyrene center-basket optics and up to 146.4 lm/W efficacy deliver low-glare workspace illumination.
• Federal, Military & Municipal Buildings — Trade Agreements Act (TAA) compliance and DLC 5.1 Premium qualification satisfy government procurement mandates.
• Schools, Universities & Classrooms — Field-adjustable 35W/26W/18W power and 3500K/4000K/5000K CCT customize light levels for educational spaces.
• Healthcare & Medical Facilities — Ultra-shallow 1.44-inch height and 100,000-hour L70 lifespan support clinical and administrative interiors.
• Shallow & Insulated T-Grid Plenums — 1.44-inch depth and IC-Rated construction fit restricted 2x2 drop-ceiling plenums.

What's Included

• RAB SWISH2X2 Field-Adjustable 2x2 Center Basket LED Troffer — White
• Installation instructions