Brilliant makes great products that seem to last for a long time! These three motion sensor lights are no different. We placed them on our steps to give us light in a darker area. The lights do require batteries (2 AA each) and came with two ways to install. You can choose to install with a sticky back or via screws. We chose the sticky backs and they have held up very well. The lights put off a nice bright light and lights up a good amount of area. There are no on/off switches but the lights do turn off on their own when no motion is detected. These are a great addition to any area that requires more light.