This motion sensor light is certified for wet locations- rain or shine, this light will function! It features a neat switch that allows you to turn the light on "permanently" in the event that you need constant light. Light that has motion detection sensitivity is important for security reasons as those houses that have motion detecting lights are more likely to fend of burglars. Additionally, it provides an extra measure of safety for any home owner who is coming home late and needs the instant illumination to enter their home. It is energy efficient lighting- turning on when you need them on and off once motion is undetected!
The range of motion for the 20310 is 45 feet by 180 degrees. The fixture if installed to a switch inside the house, can be set to be either light on like a porch light or off with sensor on only. The item does come with instructions on its use.