We use the BA Products (Remington/ Wildgame Innovations) 12V feeder, works season long, goes off whenever we set the time. Has a digital programmer. We set them off to go off 30 mins. after sunrise and an hour before sunset. You can kill just about anything under it. My buck came to it before sunrise. Most larger bucks won't come to the feeders in daylight. We only get pictures of them at night.