RAB EZP2X4 Field-Adjustable 2x4 Edge-Lit LED Flat Panel — 50W/40W/30W Selectable — 3500K/4000K/5000K — Battery Backup — White

The RAB EZP2X4/E is a commercial 2x4 EZP Ultra-Low-Profile Field-Adjustable Edge-Lit LED Flat Panel engineered to deliver up to 6,352 lumens with field-adjustable 50W/40W/30W 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 2x4 linear fluorescent ceiling troffers. Built with a UL Listed damp location construction, it is qualified for commercial utility rebates under DLC 5.1 Listed standards (DLC ID: S-4LR47P) and features a factory-installed 90-minute emergency battery backup, edge-lit optical architecture with an aluminum and iron housing, TPET reflective paper, and a polystyrene lens, integral T-bar retention clips, and Trade Agreements Act (TAA) compliance.

Key Features

• Selectable Wattage: 50W / 40W / 30W — field-adjustable via onboard switch (factory default 50W)
• Maximum Lumen Output: 6,352 lm at 50W (4000K)
• Peak Efficacy: 140.0 lm/W for high-efficiency commercial operation
• CRI: 83–85 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: Back-lit optical design with a Polystyrene (PS) lens and TPET reflective paper for uniform, low-glare illumination
• Dimming: 0–10V continuous dimming standard down to 10%
• Voltage: Universal 120–277V AC, 50/60Hz Class 2 constant current driver
• Location Rating: UL Listed for indoor damp locations
• Operating Temperature: 32°F (0°C) to 104°F (40°C) ambient range with battery backup (-22°F / -30°C to 104°F / 40°C standard panel rating)
• Certifications: DLC 5.1 Listed, UL Listed, 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 no-compromise warranty covering light output, color stability, driver performance, and fixture finish — RAB
• Form Factor & Design: Ultra-low-profile 1.38" (1 3/8") edge-lit panel with standard integral T-bar clips that secure the fixture to T-bars and prevent T-system separation
• Emergency Backup: Factory-installed 90-minute emergency battery backup (120–277V) with Light Loss Factor (LLF) of 28.07% at 50W / 34.09% at 40W / 43.81% at 30W (delivering 1,565 battery backup lumens at 4000K)

Performance & Light Output

At 50W (Factory Default): 5,988 lm (3500K / 120.7 lm/W / 83 CRI / 49.6W input), 6,352 lm (4000K / 133.7 lm/W / 84 CRI / 47.5W input), 6,160 lm (5000K / 123.7 lm/W / 83 CRI / 49.8W input).

At 40W: 5,029 lm (3500K / 125.7 lm/W / 83 CRI / 40.0W input), 5,295 lm (4000K / 137.5 lm/W / 84 CRI / 38.5W input), 5,182 lm (5000K / 129.2 lm/W / 83 CRI / 40.1W input).

At 30W: 3,961 lm (3500K / 130.3 lm/W / 83 CRI / 30.4W input), 4,131 lm (4000K / 140.0 lm/W / 85 CRI / 29.5W input), 4,092 lm (5000K / 134.2 lm/W / 83 CRI / 30.5W input).

CRI 83–85 across all configurations. Rated life 100,000 hours (L70) per IES LM-80 results and TM-21 calculations.

Smart & Control Features

The EZP2X4/E 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 EZP family, factory-configured models with externally mounted Right Angle Arm Support (RAAS) occupancy sensors (/MVS using MVS50+RAAS up to 50 ft mounting height / 50 ft diameter, or /LCBS using PIR40/LCB+RAAS up to 40 ft mounting height / 40 ft diameter, adjustable via mobile app or optional remote MSR1 — sold separately) and Tunable White 2700K–6500K Lightcloud Blue Bluetooth Mesh wireless controls (/LCBS, /LCBS/MVS; DLC system ID N1XMLOEATBA) 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 99.3% at 120V (96.9% at 277V) and Total Harmonic Distortion (THD) of 10.9% at 120V (12.3% at 277V) at factory default settings. Integrated surge protection (2kV + 4kV) safeguards internal electronics against transient voltage spikes. Includes pre-wired 0–10V dimming leads (dims down to 10%).

Emergency Battery Backup: Includes a factory-installed emergency battery backup wired for 120–277V that operates the LED luminaire for 90 minutes if primary power fails. Light Loss Factor (LLF) for EZP2X4/E is 28.07% at 50W, 34.09% at 40W, and 43.81% at 30W — delivering 1,565 battery backup lumens (at 4000K). Rated for emergency battery operation from 32°F (0°C) to 104°F (40°C).

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

Construction

Housing & Build: Back-lit panel construction featuring an aluminum and iron housing paired with a TPET reflective paper internal reflector and standard integral T-bar clips.

Location & Environmental Rating: UL Listed for indoor damp locations. Mercury and UV free with RoHS-compliant components.

Operating Temperature: Minimum starting temperature of 32°F (0°C) with battery backup (-22°F / -30°C standard panel rating); operating ambient temperature range of 32°F (0°C) to 104°F (40°C).

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

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

Dimensions & Weight: 47.75" L × 23.75" W × 1.38" H (47 3/4" × 23 3/4" × 1 3/8"; 3.31" / 3 5/16" overall height with driver box). Fixture weight: 13.4 lbs.

Installation & Mounting

Standard Recessed Mounting: Recessed directly into standard 2x4 T-grid ceilings; standard integral T-bar clips secure the fixture to T-bars and prevent T-system separation.

Surface, Drywall Recessed & Suspended Mounting: Compatible with optional surface mounting kits, recessed drywall mounting kits, and pendant mounting kits ordered separately.

Accessories (Sold Separately):

• Surface Mounting Kit: SMKEZPAN2X4 (EZPAN 2X4 Surface Mounting Kit White, UPC: 019813598178 — sold separately)
• Recessed Drywall Mounting Kit: RMKPANEL2X4 (LPANEL 2X4 Recessed Mounting Kit White, UPC: 019813104980 — sold separately)
• Pendant Mounting Kit: PMKEZPAN2X4 (EZPAN 2X4 Pendant Mounting Kit White, UPC: 019813598208 — sold separately)
• Sensors & Controls: MSR1 (Multi-Sensor Remote Control, sold separately — required to adjust settings on non-Lightcloud Blue sensor models)

Certifications & Rebates

• DLC 5.1 Listed: Listed on the DesignLights Consortium (DLC) Qualified Products List and eligible for rebates from DLC Member Utilities. To confirm rebate eligibility with your local utility provider, visit designlights.org and search DLC Product ID S-4LR47P.
• UL Listed: Certified for indoor damp locations per UL standards.
• 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 polystyrene optics and up to 140.0 lm/W efficacy deliver uniform overhead illumination.
• Federal, Military & Municipal Buildings — Trade Agreements Act (TAA) compliance and DLC 5.1 rebate eligibility satisfy government procurement mandates.
• Schools, Universities & Classrooms — Field-adjustable 50W/40W/30W power and 3500K/4000K/5000K CCT customize light levels for educational spaces.
• Healthcare & Medical Clinics — Integral T-bar retention clips, 100,000-hour L70 lifespan, and 0–10V continuous dimming support clinical interiors.
• T-Grid, Surface, Drywall & Pendant Ceilings — Recesses into 2x4 T-grids or adapts via optional SMKEZPAN2X4 surface, RMKPANEL2X4 drywall, or PMKEZPAN2X4 pendant kits.

What's Included

• RAB EZP2X4/E Field-Adjustable 2x4 Edge-Lit LED Flat Panel with Factory-Installed 90-Minute Battery Backup — White
• Integral T-bar mounting clips
• Installation instructions