GSA's GPG program commissioned LBNL to assess wreless ALC at two federal sites in Northern California. Results showed 54% normalized energy savings for GSA when fluorescent lamps with dimmable ballasts were retrofitted with wireless ALC, and 78% when the wireless ALC retrofit was coupled with LED fixtures. Wireless ALC integrated with LED fixtures is recommended for new construction and renovations, with simple payback between 3 and 6 years. It should also be considered for retrofits in facilities with minimal existing controls, high lighting energy usage, and high electricity costs.