While there are so many beautiful interior lights on the market, you may be tempted to use a stunning chandelier or pendant on your front porch, but you should not use an indoor light fixture outdoors in wet locations. They aren't sealed against moisture and will stop working during the first heavy rain. Moreover, they aren't corrosion resistant and could become an electrocution hazard if the parts that cover the electrical connections deteriorate.
Don't despair, though — exterior lighting has come a long way, and there are so many beautiful options for exterior lighting now.
Related: 40 Best Landscape Lighting Ideas