Motion detector lights are easy to install, especially if you are replacing an existing light fixture. They also are affordable: Two-bulb floodlights are about $25. Front-door lights may run about $60. The lights will come on late at night if an intruder walks toward your garage, back deck, or front yard. Check out these tips for locating motion detector lights:

• If you want lights to come on when you get in at night, position sensors to cover paths near doors you use to enter the house.
• Place the sensors to illuminate areas that need extra safety, such as near pools and stairways.
• To improve security, locate motion sensor lights around access areas to your house -- entryways, patios and at gates and fences.
• It's not a bad idea to place them in darker areas around your yard, next to trees and shrubbery. The last thing that an intruder wants is to be seen.