RAB T34FA-2X2 Field-Adjustable 2x2 Back-Lit LED Flat Panel — 40W/30W/20W Selectable — 3500K/4000K/5000K — White

The RAB T34FA-2X2 is a commercial 2x2 T34 Ultra-Economy Field-Adjustable Back-Lit LED Flat Panel engineered to deliver up to 4,328 lumens with field-adjustable 40W/30W/20W 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 a high-efficiency replacement for legacy (2) F32T8, (5) F17T8, or (4) F14T5 linear fluorescent ceiling troffers. Built with a UL Listed damp location and IC-Rated construction, it is qualified for commercial utility rebates under DLC 5.1 Standard guidelines (DLC Family Code: BBBFYY) and features back-lit optical architecture with an aluminum frame and iron back housing, a frosted polystyrene lens, CCEA Chicago plenum and TAA compliance, and recessed T-grid or optional surface/drywall mounting.

Key Features

• Selectable Wattage: 40W / 30W / 20W — field-adjustable via onboard switch (factory default 30W)
• Wattage Equivalency: Equivalent to (2) F32T8, (5) F17T8, or (4) F14T5 linear fluorescent troffers
• Maximum Lumen Output: 4,328 lm at 40W (5000K)
• Peak Efficacy: 134.1 lm/W for high-efficiency commercial operation
• CRI: 81–84 CRI color rendering across all settings
• Color Consistency: 7-step MacAdam Ellipse binning
• Selectable CCT: 3500K / 4000K / 5000K — field-adjustable via onboard switch (factory default 4000K)
• Lens & Optics: Back-lit optical design with a Frosted Polystyrene (PS) lens for uniform, low-glare illumination
• Dimming: 0–10V continuous dimming standard down to 10%
• Voltage: Universal 120–277V AC, 50/60Hz Class 2, Class P constant current driver
• Location & Ceiling Rating: UL Listed for damp locations; IC-Rated for direct contact with ceiling insulation; CCEA compliant for environmental air spaces
• Operating Temperature: -4°F (-20°C) to 104°F (40°C) ambient range
• Certifications: DLC 5.1 Listed (Family Code: BBBFYY), UL Listed, IC-Rated, CCEA Compliant (City of Chicago), TAA Compliant, IESNA LM-79 & LM-80 Tested, RoHS Compliant
• Rated Life: 50,000 hours (L70) per IES LM-80 results and TM-21 calculations
• Warranty: 5-year limited warranty covering light output, driver performance, and paint finish — RAB

Performance & Light Output

At 40W (Replaces up to (2) F32T8, (5) F17T8, or (4) F14T5): 4,089 lm (3500K / 118.8 lm/W / 82 CRI / 34.4W input), 4,100 lm (4000K / 119.2 lm/W / 83 CRI / 34.4W input), 4,328 lm (5000K / 131.1 lm/W / 83 CRI / 33.0W input).

At 30W (Factory Default): 3,259 lm (3500K / 120.3 lm/W / 81 CRI / 27.1W input), 3,411 lm (4000K / 133.1 lm/W / 84 CRI / 25.6W input), 3,271 lm (5000K / 123.4 lm/W / 83 CRI / 26.5W input).

At 20W: 2,282 lm (3500K / 126.9 lm/W / 81 CRI / 18.0W input), 2,341 lm (4000K / 134.1 lm/W / 84 CRI / 17.5W input), 2,279 lm (5000K / 127.2 lm/W / 84 CRI / 17.9W input).

CRI 81–84 across all configurations. Rated life 50,000 hours (L70) per IES LM-80 results and TM-21 calculations.

Smart & Control Features

The T34FA-2X2 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 T34FA 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 (/LCB, /LCBS, /LCBS/MVS; Bluetooth Mesh, no gateway required) or Lightcloud Enterprise (/LC; DLC NLC system ID N1XMLOEATBA) wireless network lighting controls are available.

Electrical

Powered by a Class 2, Class P constant current driver operating on universal 120–277V AC at 50/60Hz. Includes pre-wired 0–10V dimming control leads (dims down to 10%; tolerance +/-10%).

Emergency Battery Backup Options: Factory-configured emergency battery backup models (T34FA-2X2/E) are available within the T34FA series for standby illumination during power loss.

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

Construction

Housing & Build: Back-lit panel construction featuring a durable aluminum frame paired with an iron back housing engineered for commercial drop-ceiling grids.

Location & Environmental Rating: UL Listed for indoor damp locations, IC-Rated for direct contact with building insulation, and CCEA compliant for use in environmental air spaces per the electrical code specification of the City of Chicago. Mercury and UV free with RoHS-compliant components.

Operating Temperature: Minimum starting temperature of -4°F (-20°C); operating ambient temperature range of -4°F (-20°C) to 104°F (40°C).

Lens & Optics: Back-lit discrete surface-mount LEDs paired with a Frosted Polystyrene (PS) diffuser engineered for smooth, even architectural light distribution.

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

Dimensions & Weight: 23.75" L × 23.75" W × 1.50" H (23 3/4" × 23 3/4" × 1 1/2"). Fixture weight: 5.4 lbs.

Installation & Mounting

Standard Mounting: Recessed directly into standard 2x2 T-grid ceilings with a slim 1.5-inch (1 1/2") back-lit profile.

Surface & Drywall Recessed Mounting: Surface and recessed mounting kits are available for drywall and hard ceilings — sold separately.

Accessories (Sold Separately):

• Surface & Recessed Drywall Kits: Compatible surface and recessed drywall mounting kits — sold separately
• Sensors & Controls: MSR1 (Multi-Sensor Remote Control IP20, UPC: 192552026055 — required to adjust settings on non-Lightcloud Blue sensor models, sold separately)

Certifications & Rebates

• DLC 5.1 Listed: Listed on the DesignLights Consortium (DLC) Qualified Products List as a standard DLC product eligible for rebates from DLC Member Utilities. To confirm rebate eligibility with your local utility provider, visit designlights.org and search DLC Family Code BBBFYY (or model T34FA-2X2).
• UL Listed: Certified for indoor damp locations per UL standards.
• IC-Rated: Approved for direct contact with ceiling insulation.
• CCEA Compliant: Meets luminaire requirements for use in Environmental Air Space per the electrical code specification of the City of Chicago.
• 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 & Open Workspaces — Back-lit frosted polystyrene optics and up to 134.1 lm/W efficacy deliver uniform overhead illumination.
• Federal, Military & Municipal Buildings — Trade Agreements Act (TAA) compliance and CCEA Chicago environmental air-space certification satisfy government and municipal codes.
• Schools, Universities & Classrooms — Field-adjustable 40W/30W/20W power and 3500K/4000K/5000K CCT customize light levels for educational spaces.
• Healthcare & Medical Clinics — Clean architectural flat-panel aesthetics and 0–10V continuous dimming support clinical and administrative interiors.
• Insulated & Shallow T-Grid Plenums — 1.5-inch height and IC-Rated construction fit restricted 2x2 drop ceilings.

What's Included

• RAB T34FA-2X2 Field-Adjustable 2x2 Back-Lit LED Flat Panel — White
• Installation instructions