Street lighting accounts for a large share of municipal energy budgets, often 10-40% of total electricity use in cities. Smart street lights combine LEDs, sensors, IoT connectivity and adaptive controls to reduce consumption by 50-80%.

Core technologies

Key components include high-efficiency LED bulbs with far longer lifespans than sodium lamps, motion and presence sensors that dim lights when no traffic is detected, photocells that auto-adjust to ambient light, and solar integration for off-grid operation.

Indian case study

A pilot of 5,000 LED-and-sensor streetlights in Mumbai reported a 55% cut in energy use, saving an estimated ₹2 crore a year — illustrating the scale of savings achievable through smart retrofits in Indian cities.