The Symphony of Lights, the city's nightly light show, could go dark if Friends of the Earth has its way.
Along with the decorative searchlights that adorn the night-time skyline, the 'sky beamer' on the rooftop of Two IFC, the city's tallest building, will be history if the Environmental Protection Department adopts a law proposed by the green group to control light pollution.
The draft bill also seeks to curb the practice of leaving advertising neon signs and billboard spotlights on late at night. And the rows of spotlights that turn the streets of Mong Kok as bright as day will also be regulated.
But holiday lights and essential lighting for public facilities and security purposes may be exempted.
Similar light pollution laws exist in Britain and the United States.
The draft includes a mechanism to allow people to report light nuisances. Those responsible face penalties if a complaint is found valid.
