We use the Starlight motion lights for our porch and large 'scare' lights. They work great detecting motion, not just human but animals too (we've seen some cool night creatures because of them). However, there are times they can be an inconvenience. If you're sitting around your campfire or have close proximity neighbors, the lights will respond to that movement. Also, don't forget to turn them off if you're diving at night - they'll be a distraction to other drivers.
Our lights are 'programmed' by manipulating the light switch. On off on, put them in motion mode, a simple on, turns them on like any other light. I think in most cases the lights mount perfectly with existing holes from the original lights. I believe they stay on for a couple of minutes after the motion ends.