More than 300 cyclists in Brighton and Hove have been stopped by police for riding without lights.
Sussex Police issued 116 of them with £30 fixed penalty notices during the second week of a two-week joint campaign with Brighton and Hove City Council.
The Brighten Up Brighton and Hove Campaign was designed to remind cyclists about the law about bike lights.
The campaign ended on Monday, although some cyclists who were given vouchers can use them to claim free bike lights.
They need to claim them from the foyer of Hove Town Hall between 5pm and 6.30pm next Monday (9 November).
Police say they will continue to fine cyclists who break the law but without the sweetener of free lights and high-visibility accessories to soften the blow.
They should have a front and rear light and a rear reflector if they use their bikes after dark.
Poor visibility has been blamed for some of the incidents this year which have left 117 cyclists injured in Brighton and Hove, 28 of them seriously.
Sgt Paul Wood, of Brighton and Hove Road Policing Unit, said: “This has been a very successful campaign with over 300 cyclists being stopped for cycling in the dark without lights.
“It is, however, very disappointing to see so many cyclists putting themselves and other road users at risk.
“Cyclists need to understand that it is for their benefit as well as complying with the law.
“If you can’t see or be seen you are more likely to be involved in a collision.
“We will continue to take action against those cyclists who commit offences on the roads of Brighton and Hove.”