All my light are automated with timer. Don't get the fancy-digital ones, which have more programming options that you won't need. It's a pain to locate and read the programming instruction each time you need to reprogram due to day light saving, battery out or other reasons. Get the simple mechanical timers in which programming is intuitive. Mechanical will lose or gain time slightly or big shift due to day light saving or power outage, but there is no need to reprogram, simply turn the wheel forward to re match the actual light on or off time. I prefer the old fashion style with green and red stickers that it is easy to see the set intervals, and the manual override on and off button that will resume programming without the need for unbuttoning.