Other options around Los Angeles and Orange County include:
Long Beach Parade of 1000 Lights at Shoreline Village - 12/12
Santa Barbara Parade of Lights at Stears Wharf - 12/13
Dana Point Boat of Parade of Lights in San Juan Capistrano - 12/11, 12/12, 12/18, 12/19
Click HERE for more free and cheap stuff to do this month of December. Also, the LA Times online is a good resource for other holiday celebrations. As for specific events around Orange County, check out this other website (click HERE).