What is the function of the capacitors in the street lights?

There are several street lights that are not as bright as before, and someone told me that it was because of the capacitors. What are their functions?
  • Capacitors can improve the power factor, making the bulbs brighter.
  • Capacitors can make the working power of the lamps closer to the rated power, effectively reducing circuit current and losses. It can extend the service life of street lamps and improve the effective utilization of electrical energy.
  • The capacitor can also instantly increase the voltage, causing the conductive material in the lamp to heat up and conduct so that the lamp lights up quickly.

More reading: LED Street Lights: Several Things You Need to Know

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