The creators of the Bay Bridge’s “Bay Lights” have until the end of the year to raise $4 million to keep their changing light display from coming to an end. The Bay Lights have been around since March of 2013 and are operating on a two-year permit. The system was privately funded and cost $8 million to install. They are made up of 25,000 LED lights that are attached to 300 cables on one side of the bridge’s western span. Artist Leo Villareal programmed the lights to constantly change patterns from dusk until dawn each night.