Enhance your home's appearance. It's impossible not to notice a beautiful, well-lit house at night when you walk or drive by it, isn't it? When it's installed thoughtfully, lighting can play up your home's architecture, and as we mentioned already: make your house stand out in your neighborhood. Relatedly:
Increase your home's functionality. If you're only using your outdoor space during daylight hours, a lighting system can help you to get more use out of your home.
Give your home some added safety/security. A lighting system can help prevent accidents caused by impaired vision by illuminating shadowy crevices and walkways where accidents like tripping and falling usually occur. In addition, a well-lit exterior provides no hiding places for would-be intruders.