Streetlights are important civic assets that consume approximately 40% of a municipality’s energy budget. Most streetlights use older, less energy-efficient lamp technology such as high-pressure sodium or mercury vapor lamps. Also, they are not networked devices. Consequently, these lights cannot be dimmed or switched on/off remotely as conditions warrant. They cannot be programmed to respond to weather or other demand cycles. Furthermore, the street light operator can learn about street light failures only when a resident reports the outage or a mobile crew discovers the problem. Streetlights typically run for an average of 12 hours a day at full intensity. Numerous studies (validated through deployments) have shown that networked control of these street lights will lead to up to 30% reduction in energy consumption, resulting from remote dimming, and reduced runtime. Replacing these streetlights with non-networked LED luminaires enables energy savings of 45-55% due to inherent efficiencies of LEDs. Replacing existing streetlights with networked LED luminaires enables the greatest energy savings – up to 65% from a combination of energy efficient LEDs, remote dimming and Constant Light Output. Constant Light Output compensates for LEDs that initially run brighter and then slowly degrade in lumen output to 70% of initial brightness at the end of their practical life. CLO allows operators to reduce the brightness initially by dimming 30%, with subsequent reduction in dimming profile as the light degrades over time, thereby maintain a constant luminosity over the life of the LED.