Lights are not something to skimp on. I would go with the blinky lights. Something alone the lines of
bike planet lights. I think the best setup is a red blinky on the bike and one on the back of the helmet a white headlight that can flash on the front bars and one on the front of the helmet that points in the direction you are looking. If you have trouble with people not seeing you during the day multiply that by 10 at night.