




Lithonia ZL1D LED Strip Light
Our ZL1D LED strip light brings professional-grade linear illumination to any commercial or industrial environment. Engineered with advanced thermal management and high-efficacy LEDs, the ZL1D delivers consistent, reliable light output for warehouses, retail spaces, offices, and architectural applications.
The ZL1D features a low-profile design that integrates seamlessly into both surface and suspended mounting configurations. Whether you're upgrading legacy fluorescent fixtures or designing a new space, this strip light provides energy-efficient performance with minimal maintenance requirements over its extended lifespan.
- High-efficacy LED technology delivers up to 150 lumens per watt for superior energy savings
- Advanced thermal management system ensures consistent performance and extended LED life
- Available in multiple lengths from 2 feet to 8 feet to fit any installation requirement
- Universal voltage driver (120-277V) simplifies specification and installation
- Multiple lumen packages and color temperatures (3000K, 3500K, 4000K, 5000K) for application flexibility
Housing Construction and Thermal Design

The Lithonia lighting zl1d utilizes a powder-coated steel housing engineered for durability in commercial and industrial settings. The housing doubles as an efficient heat sink, dissipating thermal energy away from the LED arrays to maintain optimal operating temperatures.
This integrated thermal management approach extends LED lifespan while maintaining consistent color quality and light output over time. The low-profile design measures just 1.5 inches in height, making the ZL1D ideal for applications where ceiling clearance is limited or a discreet lighting solution is preferred.
Optical Performance and Light Distribution

The ZL1D delivers uniform light distribution through precision-engineered optics that eliminate hot spots and shadows. Each strip light ships with a standard diffuser that provides smooth, even illumination across work surfaces and retail displays.
Color rendering index (CRI) of 80+ ensures accurate color perception for merchandising, assembly tasks, and general illumination applications. High-CRI options reaching 90+ are available for applications demanding superior color fidelity, such as art galleries, showrooms, and healthcare facilities.
Installation and Continuous-Row Capability

Surface and Pendant Mounting
The lithonia lighting zl1d ships with universal mounting brackets that accommodate both surface and pendant installations. Surface mounting requires simple ceiling attachment using the provided hardware, while pendant mounting uses aircraft cable or rigid stems for suspended applications.
Fixture-to-fixture connections enable continuous runs without visible gaps, creating seamless lines of light in hallways, retail environments, and open offices. End-to-end connectors maintain electrical continuity and ensure consistent illumination across multiple fixtures.
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Common Questions About the ZL1D LED Strip Light
The lithonia lighting zl1d is available in 2-foot, 4-foot, 6-foot, and 8-foot lengths to accommodate various installation requirements. Each length offers multiple lumen packages, allowing you to select the appropriate light output for your application.
For continuous-row installations, you can connect multiple fixtures end-to-end to create seamless runs of any desired total length. Connectors maintain both electrical continuity and visual alignment across fixtures.
Yes, dimmable ZL1D models integrate seamlessly with standard 0-10V dimming controls. When ordering, specify the dimming option to receive fixtures equipped with 0-10V drivers.
Dimming range is continuous from 100% down to 10% light output, providing precise control over illumination levels. This capability enables energy savings through daylight harvesting and occupancy-based strategies while extending LED lifespan through reduced operating power.
The ZL1D is rated for 60,000 hours of operation at L70, meaning the fixture will maintain at least 70% of its initial lumen output after 60,000 hours. In typical commercial environments operating 12 hours per day, this translates to approximately 13.7 years before noticeable light depreciation occurs.
The advanced thermal management system in the lithonia lighting zl1d ensures consistent LED performance over this extended lifespan, minimizing maintenance costs and reducing the frequency of fixture replacement compared to conventional lighting technologies.
Yes, all ZL1D models carry DesignLights Consortium (DLC) Premium listing, qualifying them for utility rebate programs throughout North America. DLC Premium represents the highest performance tier, ensuring maximum rebate eligibility.
Rebate amounts vary by utility provider and installation details. We recommend consulting your local utility company or energy efficiency program administrator to determine specific incentive levels available in your area. Many customers report rebates covering 30-50% of total fixture costs.
The ZL1D is available in four standard correlated color temperatures: 3000K (warm white), 3500K (neutral warm), 4000K (cool white), and 5000K (daylight). All color temperatures maintain a minimum color rendering index (CRI) of 80+.
For applications requiring superior color fidelity—such as retail displays, art galleries, or healthcare environments—high-CRI options (90+ CRI) are available in select color temperatures. The broad range of color options allows you to match existing lighting schemes or create specific spatial atmospheres appropriate to your application.
The standard ZL1D is rated for dry and damp locations, making it suitable for most interior commercial and industrial applications. For wet location applications such as car washes, food processing facilities, or exterior canopies, we offer wet-location rated variants with sealed construction and appropriate gaskets.
When specifying the ZL1D, confirm your environmental conditions with our technical support team to ensure you receive the appropriate enclosure rating. Operating temperature range for standard models is -4°F to 122°F (-20°C to 50°C).
The lithonia lighting zl1d typically consumes 40-60% less energy than equivalent T8 fluorescent strip fixtures while delivering comparable or superior light output. Actual savings depend on the specific fluorescent fixture being replaced and your selected ZL1D lumen package.
For example, a 4-foot ZL1D producing 4,000 lumens draws approximately 28 watts, compared to a 4-lamp T8 fluorescent fixture drawing 128 watts (including ballast losses) for similar output. When combined with dimming controls and occupancy sensors, total energy reduction often exceeds 70% in real-world commercial installations.
