The DLC website will undergo scheduled maintenance on Saturday, June 10, 2023 between 11:00pm and 12:30am ET. During this time, the website may be temporarily inaccessible.

External Horticultural Tools and Resources

The resources below are supplemental materials for particular areas of interest in horticultural lighting. Although these external resources and tools were not created by the DLC, they may be helpful for those in CEA industry.

Tools and Resources

State Regulations

If you know of additional tools you'd like to see added to our site, please contact us at