When we fish the lights in the Winter time in the ship channel we use a white bait. Normally a cocahoe minnow, tandem rigged.
Sometimes we also use a white and yellow shad rig, if one is catching more than the other switch both to that color.
http://www.hhlure.com/speckandredfishrigsnew.html
Also, cast into the shadows and swim the bait into the light.