40 Watt 2X4 LED Back Lit Panel | 5558 Lumens | 4000K | 100-277V
This 40 Watt 2X4 LED backlit panel is a strong choice for replacing fluorescent troffers in commercial and industrial spaces, offering 5558 lumens at 139 lumens per watt for efficient, uniform illumination. Its corrosion-resistant aluminum frame and anti-yellowing polycarbonate lens support durability and long-term appearance, while the low profile allows installation in areas with limited plenum height. The fixture’s broad 140° beam angle and 4000K neutral white light are well-suited for offices, warehouses, manufacturing areas, and distribution centers with standard grid ceilings. It is not intended for hazardous or wet locations.
Dwayne Kula | President, CTO and Founder
455 in stock
Product Specifications
Key Features
| Brand | LED Lighting Supply |
| Watts | 40 |
| Lumens | 5558 |
| Lumens Per Watt | 139 |
| Replaces | Fluorescent Troffer |
| Voltage | 100V-277V |
| Color Temperature | 4000K |
| CRI | 80+ |
| Dimming | 1-10V |
| Beam Angles (Std) | 140° |
| Optics | Polycarbonate Lens |
| Lifespan | 50,000 (L70) hours |
| Mounting | Recessed |
| Mounting (Opt) | Chain-Cable or Surface |
| Fixture Color | White |
| Frequency (Hz) | 50/60 |
Durable Construction
| Housing | Aluminum Alloy |
| Certifications | UL | Rebate Eligible |
| Warranty | 5 years |
Measurements
| Dimensions (in) | 23.75 X 47.75 X 1.25 |
| Weight (lbs) | 9 lbs |
Download IES Files
Product Lighting Layout Estimator
Use this estimator to calculate approximate fixture count, spacing, and average foot-candles for a simple rectangular space using the selected LED fixture. Enter your room dimensions, mounting height, target foot-candles, light loss factor, and room/layout condition to generate a preliminary lighting layout. When IES photometry is available, workplane height and room reflectance controls are shown.
Project Inputs
Estimated Results
Estimated average foot-candles are preliminary and should be verified with a lighting plan for project-critical applications.
Room / Layout Condition: This field is used only when usable IES photometry is not available. In fallback mode, it acts as a simplified room utilization factor for reflectance, fixture distribution, racking, obstructions, and how much fixture light reaches the work area. Open / light-colored spaces use 0.90, typical warehouses or shops use 0.75, racked or obstructed spaces use 0.60, and dark or complex spaces use 0.45. When IES photometry is active, this field is hidden and the estimator uses the selected workplane height, LLF, and simplified reflectance adjustment instead.
Photometry / Simulation Note: When usable IES photometry is available for the selected fixture, this estimator uses the fixture’s IES candela data, selected workplane height, light loss factor, and simplified reflectance adjustment to estimate fixture count, average foot-candles, and visual light distribution. The reflectance adjustment is a conservative approximation and is not a full zonal-cavity, radiosity, or professional photometric room calculation. When IES photometry is not available, the estimator uses a simulated beam model based on lumens, mounting height, room/layout condition, light loss factor, and beam angle.
Preliminary Estimate Only: This estimator is intended for simple square or rectangular spaces and should be used as a planning aid, not a final photometric lighting plan. Actual light levels may vary based on fixture optics, selected IES file, mounting conditions, workplane height, ceiling height, surface reflectance, obstructions, controls, voltage, installation conditions, and site-specific requirements. Project-critical applications should be verified with a formal lighting plan.
This estimate is a starting point. Warehouses, industrial facilities, hazardous locations, sports areas, schools, healthcare spaces, public areas, and code-sensitive projects may require a reviewed lighting layout before purchase or installation.
Product Overview
This 2×4 LED back-lit panel is a 40W recessed fixture for office lighting, healthcare facility lighting, commercial interior lighting, and educational facility lighting. It produces 5558 lumens at 4000K with a broad 140-degree distribution.
The fixture replaces fluorescent troffers and operates on 100-277V input. Recessed mounting is standard, with chain-cable and surface mounting available as optional installation methods.
Core Performance and Output
The panel delivers 5558 lumens at 139 lumens per watt. Its 4000K color temperature and 80+ CRI suit general interior illumination where neutral white light and broad coverage are required.
A 140-degree beam angle distributes light across the ceiling plane and work area below. Output and uniformity depend on mounting height, ceiling layout, room geometry, and target light levels; the full 5558-lumen output can be excessive in smaller low-ceiling spaces.
Adjustability and Control Options
This fixture supports 1-10V dimming. Dimming allows output adjustment where the lighting layout requires lower light levels or variable operating conditions.
The fixture operates at 50/60 Hz on 100-277V input. Color temperature is fixed at 4000K, and the supplied data does not identify field-selectable wattage or color settings.
Longevity and Reliability
The rated life is 50,000 hours L70. This rating identifies the point at which light output is expected to remain at 70 percent of its initial level.
The fixture includes a 5-year warranty. Long-term performance depends on correct installation, compatible dimming components, and maintaining access for service where required.
Build Quality and Physical Characteristics
The fixture uses an aluminum alloy housing with a polycarbonate lens. The white housing measures 23.75 x 47.75 x 1.25 inches and weighs 9 pounds.
Its 2×4 form factor is intended for recessed installation. Optional chain-cable or surface mounting changes the installation approach and should be planned around the fixture dimensions and mounting location.
Where This Product Fits Best
This panel fits interior lighting layouts that use 2×4 recessed fixtures and require broad, even general illumination. The 4000K output and recessed form factor align with finished commercial and institutional interior spaces.
- office lighting
- healthcare facility lighting
- educational facility lighting
- commercial interior lighting
- conference room lighting
- corridor lighting
- reception area lighting
The supplied specifications identify recessed, chain-cable, and surface mounting options. No wet-location or hazardous-location rating is listed in the supplied data.
Installation and Long-Term Use
Recessed mounting is the standard installation method. Chain-cable and surface mounting are optional where the installation design calls for those methods.
Confirm the 23.75 x 47.75 inch fixture dimensions, 9-pound weight, input voltage, and dimming method before installation. Long-term service planning should preserve access to the fixture and its electrical connections.
How This Fixture Is Commonly Used
In office lighting, healthcare facility lighting, educational facility lighting, and commercial interior lighting, these panels are arranged in ceiling layouts that follow the room shape and required illumination pattern. Mounting height affects light distribution, perceived brightness, and uniformity across the space.
Conference room lighting, corridor lighting, and reception area lighting layouts commonly use repeated fixture rows or aligned ceiling patterns. Spacing varies with mounting height, target light levels, room dimensions, and the 140-degree distribution.
Safety, Certifications, and Warranty
This fixture is UL certified. It is rebate eligible.
The warranty period is 5 years. The fixture operates on 100-277V input at 50/60 Hz.
Frequently Asked Questions
Q: What light output does this 2×4 LED panel produce?
A: It produces 5558 lumens while consuming 40W.
Q: What input voltage does this panel require?
A: The fixture operates on 100-277V input at 50/60 Hz.
Q: Can this panel be dimmed?
A: Yes. It supports 1-10V dimming.
Q: What affects fixture layout for this panel?
A: Mounting height, target light levels, room dimensions, and the 140-degree beam distribution affect fixture layout. The supplied product data does not establish a specific spacing value or fixture count.
Application Questions and Clarification
Q: Is this panel intended for office lighting and healthcare facility lighting?
A: Yes. Office lighting and healthcare facility lighting are listed applications for this panel product family.
Q: Which mounting methods are available?
A: Recessed mounting is standard. Chain-cable and surface mounting are optional.
Q: What should be confirmed before selecting this panel for corridor lighting or conference room lighting?
A: Confirm the mounting method, available 100-277V input, dimming requirements, fixture dimensions, mounting height, target light levels, and layout requirements.
Web ID: 1710
