Field-Adjustable Light Output

Field-Adjustable Light Output

Field-adjustable lighting products are a relatively new trend in commercial lighting where performance characteristics such as light output, color temperature, and optics can be adjusted by the manufacturer, distributor, or contractor before or during installation. This allows manufacturers and distributors to capture greater economies of scale and stock fewer SKUs, reducing manufacturing and distribution costs while providing customers greater flexibility. 

The DLC temporarily suspended the qualification of new field-adjustable light output products against the requirements published as a part of Technical Requirements V4.3 in order to revise the policy. An updated policy has been released as a part of Technical Requirements V4.4, and the DLC will resume qualification of field-adjustable light output products on October 18, 2018.

Final policy released on DLC website


Desired Outcomes and Benefits


New policy enables reliable and efficient field-adjustable lighting products to be qualified and listed on the DLC SSL QPL.


The policy inclues clear definition(s), performance criteria, and testing requirements to ensure listed products are high quality and energy efficient.

Energy efficiency program administrators and others support the installation of high quality, energy efficient field adjustable products in their lighting rebate or procurement programs.



Reduced manufacturing and distribution costs along with greater flexibility leads to greater market adoption of efficient lighting and increased customer satisfaction







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Drafts and Documents

Revised Draft Documents (as a part of Technical Requirements V4.4)

Second Draft Documents

First Draft Documents