Modern Mississauga presents Ask The City - Why is the LED street light on my street on during the day?

Modern Mississauga and the City of Mississauga have come together to present an ongoing series called “Ask the City.”
We’ll share relevant information here and answer your questions about our city.
Today’s question is about why some street lights are on during the day. 

Why is the LED street light on my street on during the day?

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The City of Mississauga is responsible for the operation and maintenance of over 50,000 street lights within City boundaries. These LED street lights are controlled by a wireless network so that they can communicate with each other and to central controllers.  The lights are programmed to turn “on” and “off” based on sunset and sunrise times.  For safety reasons, the LED lights are programmed to turn themselves “on” and remain “on” when they lose communication to the central controllers. This ensures that roads remain lit at night.

The City has identified some groups of LED street lights that are staying “on” 24/7 as a result of losing communication to the central controller.  The City is investigating the cause of these interruptions in order to resolve this issue as quickly as possible.

The maintenance of street lights is managed by Alectra Utilities. If you find a street light that is burnt out or needs to be repaired, you can report it on the Alectra website or call their customer service line at 905-273-7425.

The LED Street Lighting Conversion Project is near completion. For more information on the project, visit

If you’ve got a question about the City, we want to hear from you.
Please send your questions to with “Ask The City” in the subject line.