20 / 28 / 34 / 41 Watt Adjustable 2×4 Troffer Light | 3390 to 6442 Lumens | 3000K / 3500K / 4000K / 5000K / 6500K | 100-277V
This 2×4 LED troffer stands out for its adjustable wattage (20 to 41 watts) and color temperature (3000K to 6500K), allowing precise tuning for different tasks and preferences in offices, schools, and commercial ceilings. With up to 6442 lumens and a 120 degree beam, it provides broad, even illumination, while 0-10V dimming supports energy management. The aluminum alloy housing and UL certification ensure durability and compliance, and a 70,000 hour lifespan reduces maintenance needs. Its recessed mounting and compatibility with 100-277V systems make installation straightforward in standard drop ceilings.
Dwayne Kula | President, CTO and Founder
4906 in stock
Product Specifications
Key Features
| Brand | LED Lighting Supply |
| Watts | 20 | 28 | 34 | 41 |
| Lumens | 3390 | 4629 | 5375 | 6442 |
| Lumens Per Watt | 155 |
| Replaces | Fluorescent Troffer |
| Voltage | 100V-277V |
| Color Temperature | 3000K or 3500K or 4000K or 5000K or 6500K |
| CRI | 80+ |
| Dimming | 0-10V |
| Beam Angles (Std) | 120° |
| Optics | Polycarbonate Lens |
| Lifespan | 70,000 hours |
| Mounting | Recessed |
| Fixture Color | White |
| Frequency (Hz) | 50/60 |
Durable Construction
| Housing | Aluminum Alloy |
| Operating Temperature | -4°F to 122°F |
| Certifications | UL | Rebate Eligible |
| Warranty | 5 years |
Measurements
| Dimensions (in) | 23.75 x 47.75 |
| Weight (lbs) | 11.4 lbs |
Features/Accessories
- Color Adjustable
- Wattage Adjustable
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 troffer is a recessed ceiling fixture for interior panel lighting. It provides selectable wattage and color temperature settings in one fixture.
The fixture operates from 100-277V and replaces fluorescent troffers in recessed ceiling systems. Its 23.75 x 47.75 inch housing fits standard 2×4 ceiling grid openings.
Core Performance and Output
Selectable wattage settings of 20W, 28W, 34W, and 41W produce 3390, 4629, 5375, and 6442 lumens. Fixture efficacy is 155 lumens per watt.
A 120 degree beam distribution and polycarbonate lens provide broad downward illumination. The 41W setting can produce excessive output in smaller rooms or low ceiling layouts.
Input voltage is 100-277V at 50/60Hz. The fixture has an 80+ CRI and selectable 3000K, 3500K, 4000K, 5000K, and 6500K color temperatures.
Adjustability and Control Options
Wattage adjustment allows output selection from 20W through 41W. Color temperature adjustment allows field selection from 3000K through 6500K.
The fixture supports 0-10V dimming. Controls must be compatible with the 0-10V dimming system.
Longevity and Reliability
This troffer has a rated lifespan of 70,000 hours. The aluminum alloy housing supports long-term recessed ceiling installation.
Operating temperature range is -4 degrees F to 122 degrees F. Long-term performance depends on proper electrical connection and operation within the listed temperature range.
Build Quality and Physical Characteristics
The fixture uses an aluminum alloy housing with a white finish. A polycarbonate lens covers the light source and distributes light across the 120 degree beam angle.
Overall dimensions are 23.75 x 47.75 inches. Fixture weight is 11.4 pounds.
Where This Product Fits Best
This recessed 2×4 troffer fits interior ceiling-grid lighting where adjustable output and selectable color temperature are needed. It is intended for panel-lighting applications with standard 2×4 recessed openings.
- office lighting
- educational facility lighting
- healthcare facility lighting
- commercial interior lighting
- conference room lighting
- corridor lighting
- reception area lighting
The fixture is rated for operation from -4 degrees F to 122 degrees F. Recessed mounting requires a compatible 2×4 ceiling grid opening.
Installation and Long-Term Use
The troffer installs recessed in a 2×4 ceiling grid. Verify ceiling-grid support, fixture dimensions, branch voltage, and dimming wiring before installation.
Set wattage and color temperature before final commissioning. Maintenance access should allow inspection of wiring connections and the polycarbonate lens.
How This Fixture Is Commonly Used
In office lighting, educational facility lighting, healthcare facility lighting, and commercial interior lighting, fixtures are typically arranged in ceiling-grid patterns aligned with room geometry. Mounting height follows the installed ceiling height because the fixture mounts recessed in the ceiling grid.
Conference room lighting, corridor lighting, and reception area lighting often use consistent color temperature settings across connected spaces. Spacing and fixture count vary with the selected wattage, mounting height, target light level, and room layout.
Safety, Certifications, and Warranty
This fixture is UL certified. It is rebate eligible.
The fixture includes a 5-year warranty. Use within the listed 100-277V input range and -4 degrees F to 122 degrees F operating range.
Frequently Asked Questions
Q: What wattage settings are available?
A: The fixture has selectable 20W, 28W, 34W, and 41W settings.
Q: What light output does this troffer provide?
A: Output is 3390 lumens at 20W, 4629 lumens at 28W, 5375 lumens at 34W, and 6442 lumens at 41W.
Q: Can the color temperature be adjusted?
A: Yes. Available color temperature settings are 3000K, 3500K, 4000K, 5000K, and 6500K.
Q: Does this fixture support dimming?
A: Yes. The fixture supports 0-10V dimming.
Q: What ceiling opening does this fixture require?
A: The fixture is recessed mounted and measures 23.75 x 47.75 inches.
Application Questions and Clarification
Q: Is this fixture appropriate for office lighting and educational facility lighting?
A: Office lighting and educational facility lighting are listed applications for this panel light. Wattage and color temperature can be selected for the project layout.
Q: What should be considered when planning fixture placement?
A: Ceiling height, selected wattage, target light levels, and room layout affect fixture placement. A specific spacing value is not established by the supplied product data.
Q: Can this fixture be used for corridor lighting?
A: Corridor lighting is a listed secondary application. The fixture provides a 120 degree beam angle and selectable wattage settings.
Web ID: 2733
