RAB T34FA-1X4 Ultra-Economy Field-Adjustable LED Flat Panel — 40W / 30W / 20W Selectable — White

The RAB T34FA-1X4 Ultra-Economy Field-Adjustable LED Flat Panel delivers up to 4,089 lumens at 40W / 4000K with field-selectable wattage (40W / 30W / 20W) and CCT (3500K / 4000K / 5000K) via onboard switches — no rewiring, no tools required. Factory default is 30W / 4000K. Supports 0–10V dimming, dims to 10%. UL Listed for damp locations. IC Rated for direct insulation contact. DLC Premium and DLC Standard listed. CCEA Compliant. Replaces 1-lamp F32T8 fluorescent troffers. Optional microwave occupancy sensor and battery backup available separately.

Key Features

• Selectable Wattage: 40W / 30W / 20W — field-adjustable via onboard selector switch; factory default 30W
• Wattage Equivalency: Replaces 1-lamp F32T8 fluorescent troffer at 40W setting
• Maximum Lumen Output: 4,089 lm at 40W / 4000K
• Peak Efficacy: 127.8 lm/W at 20W / 4000K
• CRI: 82–84 across all wattage and CCT configurations
• Selectable CCT: 3500K / 4000K / 5000K — field-adjustable via onboard selector switch; factory default 4000K
• Lens & Optics: Frosted Polystyrene (PS) lens; aluminum frame and iron back housing
• Dimming: 0–10V continuous dimming; dims to 10%; requires separate 0–10V DC dimming circuit
• Voltage: 120–277V, 50/60Hz; Constant Current, Class 2, Class P driver
• Location Rating: UL Listed for damp locations; IC Rated for direct insulation contact
• Operating Temperature: −20°C (−4°F) minimum to 40°C (104°F) maximum ambient
• Certifications: UL Listed (damp), DLC Premium and DLC Standard listed, CCEA Compliant, IESNA LM-79 & LM-80 tested
• Rated Life: 50,000 hours based on IES LM-80 results and TM-21 calculations
• Warranty: 5-year limited — covers light output, driver performance, and paint finish
• Controls (Optional): Microwave occupancy sensor optional; Lightcloud Blue (/LCB) and Lightcloud Enterprise (/LC) wireless network lighting controls available

Performance & Light Output

At 40W: 3,884 lm (3500K / 113.2 lm/W), 4,089 lm (4000K / 124.7 lm/W), 3,920 lm (5000K / 114.3 lm/W). At 30W: 3,083 lm (3500K / 116.8 lm/W), 3,223 lm (4000K / 126.9 lm/W), 3,104 lm (5000K / 118.0 lm/W). At 20W: 2,137 lm (3500K / 120.7 lm/W), 2,198 lm (4000K / 127.8 lm/W), 2,139 lm (5000K / 121.5 lm/W). CRI 82–84 across all wattage and CCT configurations. Rated life 50,000 hours (L70) per IES LM-80 / TM-21.

Smart & Control Features

The T34FA-1X4 supports 0–10V dimming for integration with standard commercial dimming systems and building automation controllers. An optional microwave occupancy sensor (MVS) or passive infrared (PIR) sensor is available for field or factory installation.

• Lightcloud Blue (/LCB): Bluetooth Mesh wireless control — ON/OFF, dimming, color tuning, schedules, and SmartShift. No gateway or hub required. Download the Lightcloud Blue mobile app for iOS or Android.
• Lightcloud Enterprise (/LC): Secure cellular and Zigbee mesh network with remote commissioning, demand response, and BACnet integration. Requires a gateway or hub sold separately. Download the Lightcloud Enterprise mobile app for iOS or Android.

DLC system: N1XMLOEATBA (Interior); NHCZ2BIA17L (Exterior). Learn more at lightcloud.com.

Electrical

Constant Current, Class 2, Class P driver. 120–277V, 50/60Hz. Supports 0–10V dimming; dims to 10%. Requires separate 0–10V DC dimming circuit. Mercury and UV free. RoHS-compliant components.

Construction

Housing & Thermal: Aluminum frame and iron back housing. Maximum ambient temperature 40°C (104°F). Cold weather starting rated to −20°C (−4°F).

Lens & Optics: Frosted Polystyrene (PS) lens.

Finish: Formulated for high durability and long-lasting color. Green Technology construction — mercury and UV free, RoHS-compliant.

Environmental & Safety: IC Rated — suitable for direct contact with insulation, no clearance required. UL Listed for damp locations.

Dimensions & Weight: 47¾″ L × 11 15/16″ W × 1½″ H. Weight: 5.6 lbs.

Installation & Mounting

Standard Hardware: Recessed into standard T-grid ceiling.

Mounting Options: Surface mount and recessed drywall ceiling kits available separately. Wattage and CCT selector switches are field-adjustable via onboard switches — set before or after installation, no tools required.

Wiring: Driver includes dimming control wiring for 0–10V dimming systems. Requires separate 0–10V DC dimming circuit.

Accessories:

• Surface mount kit — for surface ceiling installations
• Recessed drywall ceiling kit — for non-T-grid drywall ceiling installations
• Microwave occupancy sensor (MVS) — optional, factory or field-installed
• Battery backup version — available separately (sold separately)

Certifications & Rebates

• UL Listed — damp locations
• DLC Premium & DLC Standard Listed — qualifies for utility rebate programs. To verify rebate eligibility with your utility provider, visit designlights.org and search DLC Family Code BBBFYY.
• CCEA Compliant
• IESNA LM-79 & LM-80 Tested — tested per IESNA standards by an independent laboratory
• IC Rated — suitable for direct insulation contact

Typical Applications

• Offices and open-plan workspaces — 30W factory-default setting delivers 3,223 lm at 4000K for standard commercial illuminance levels
• Classrooms and educational facilities — selectable CCT (3500K/4000K/5000K) allows a single SKU to meet varied project specs without reordering
• Healthcare facilities and exam rooms — IC Rated and damp-rated construction supports insulated ceiling installations and moisture-prone areas
• Government and institutional buildings — CCEA Compliant for qualifying procurement programs
• Retrofit of 1-lamp F32T8 fluorescent troffers — 1×4 form factor drops into existing T-grid openings
• Corridors and ancillary spaces — 20W setting delivers 2,198 lm at 4000K for lower-demand areas with occupancy sensor capability

What’s Included

• RAB T34FA-1X4 Ultra-Economy Field-Adjustable LED Flat Panel — White
• Mounting hardware for T-grid installation