Skip to main content <%-- Protanopia filter --%> <%-- Deuteranopia filter --%> <%-- Tritanopia filter --%>

About LED Lighting

One of the major initiatives taken by Greater Chennai Corporation under Smart City Project is replacing of existing Sodium Vapour lamps with LED lights. LED based lighting system has become a popular substitute for low voltage brighter lighting. LEDs are favored over incandescent bulb or CFL as LEDs convert far more of their energy into light. For instance, substantial amount of energy is wasted as heat in bulbs. Increased efficiency means a drop in withdrawal from the grid or the batteries will last much longer maintaining the brightness. The expected lifetime of LEDs is over 10 lakh running hours. To top it all, the maintenance cost is negligible, as it operates at a very low voltage.

Smart Street Light Video




Chennai is the pioneer city in India for converting sodium vapor lamps into LED lights. Greater Chennai Corporation’s vision to replace the Sodium Vapor lamps with LED lights has been materialized. The prime focus and responsibility is to ensure that Chennai City is lighted and illuminated during night hours. Illuminated city areas beautify the location. It is a proven track record that anti-social activities had drastically reduced by improving the coverage of lighting. In this project, total number of 1772 Sodium Vapor lamps have been replaced by LED lights in the ABD region of T. Nagar. Considering the cost involved in the street lights, GCC feels that the installation of energy saving lights is the need of the hour.


Sodium Vapor Lamps are being used since a long time but GCC believes that adapting to new changes is the part of progressing towards a better city. Sodium Vapor/Metal Halide lamps have a lifetime of about 5000 burning hours whereas the new LED street lights have 50,000 burning hours. That is 10 times more efficacies from a single bulb. Also, the white light and the illumination of LED lights are more than that of the standard Sodium Vapor/Metal Halide lamps. The benefits of converting Sodium Vapor lamps into LED lights are:-

Better Illumination Of Areas Compared To Sodium Vapor Lamps.

LED Lights Give Out The Same Light Output Even In Low Voltages.

Better Life Time Compared To Sodium Vapor Lamps

Sodium Vapor Lamps Cost More Than LED White Lights.


Greater Chennai Corporation has successfully delivered the job as promised. The project has been completed successfully & currently the maintenance period is underway.


LED Lights Have Wider Coverage Of Areas Compared To Sodium Vapor Lamps.

Improving The Coverage Space Of Lighting Reduces Anti-Social Activities.

LED Lights Have Better Life Time And They Also Use Less Energy.

LED Lights Cost Significantly Less Than Sodium Vapor Lamps.

Case Studies

New Street Lights in Carol Stream



LED street lighting case study in Carol Stream

Charleston LED Bridge Lighting Case Study



Learn how Acuity Brands helped West Virginia improve the Nitro-St Alban's Bridge lighting with Holophane's GranVille LED II solutions.