Fixture by fixture, lighting in American cities is transitioning from the traditional metal halide domain to LEDs, not only on city streets, but also in landscaping and commercial building settings. LEDs are providing a long-lasting, energy-efficient light source with a lowering price tag, and they more frequently are coming with controls that further reduce costs for users—whether public entities or businesses. The GE LightGrid technology pilot in LA enables the city to remotely monitor each of its streetlights using data from a GPS unit on each fixture to mark the longitude and latitude of that unit. The controllers themselves twist into standard NEMA sockets on each of the fixtures and then encompass what GE Lighting calls the LightGrid network. With this network, the city can track energy usage and lighting data through a central management system accessible with a Web-based portal.