Effective January 31, 2018, the Lithonia Lighting® ZL2 is being discontinued. The product has had diminishing sales for the last few years and does not qualify for DLC.
Consider using the ZL1F and CLX as alternatives.  The CLX is DLC Premium listed and both options offer advanced functionality for any of your applications.

  CLX

• Premium Aesthetics – Architectural end caps, end-to-end illumination, and lenses that eliminate pixilation
• Power & Savings – Available in 1,500 – 20,000 lumen packages and 160+ Lumens per watt for ultimate savings
• Technological Advancements – Available integrated factory or field-installable sensors and wired and wireless controls, incuding nLight® Air and XPoint™ Wireless, maximize your control options. The CLX LED is available with Tunable White color tuning and Atrius-enabled indoor positioning capability Integral battery pack eliminates the need for an external inverter, allowing emergency power to be supplied without impacting aesthetics
• DLC Premium Listed – Configurations are DLC Premium listed and are rebate eligible for accelerated paybacks and lower total cost of ownership
  

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  ZL1F

• Contemporary Form – Wide, 100% diffused lens eliminates pixilation and delivers a prominent presence ideal for applications where enhanced aesthetics are desired
• Scalable Power – Available in 1,500 – 12,000 lumen packages, for enhanced flexibility
• Integrated EM Option – Integral battery pack eliminates the need for an external inverter, allowing emergency power to be supplied without impacting aesthetics
• Modern Function – Network fixtures for maximum energy savings by choosing the nLight nPP16D power pack option

Helpful Tools:

CLX – Web Page | Specification Sheet | Sell Sheet

ZL1F – Web Page | Specification Sheet | Sell Sheet