Galway City Council has said temporary lights cannot be erected on a local authority owned pitch in the city.
Knocknacarra FC is in dispute with the local authority, after the soccer club was told to take down temporary lights it had installed at Cappagh Park last November.
The club has been using a new 3G all-weather pitch at the site, since it was developed by the council in 2018, at a cost of over €600,000.
Club members protested outside Galway City Hall yesterday, claiming that training plans for hundreds of children have been impacted by the order to remove the temporary lights.
But the council says the erection of lights without planning permission could jeopardise a formal application for permanent floodlights.
The local authority said it would be illegal to install lights without proper planning. It has also pointed out that the pitch location, near a Special Area of Conservation, poses problems.
There are plans to install permanent lights at the site in the coming months.
Galway City Council said consultants have been appointed to progress this and it is hoped that work would be completed by next autumn.