Most outdoor Xmas lights are also safe for indoor use. But never make the mistake of using indoor light strings for the outdoors as this could cause electrical problems or short circuiting. Another thing to consider is the bulbs. Some string lights use small bulbs while others are equipped with larger bulbs. Outdoor Xmas lights are manufactured in different sizes, shapes and lengths and it's important to know what kind you need before you purchase them; think about why, where or how many you will use. If you are going to use it for your Xmas tree or fence, make measurements to find out how long the string lights should be. Small bulbs are good as accent pieces for buffet tables, indoor Xmas trees and other small accent decor inside the home. Larger bulbs provide more light and are pretty useful for overhead lighting for parties, weddings,.

You may need to have the length customized or buy several packages if you will need really long ones for your fence or a big tree. It's always safe to buy an extra carton or give an allowance of 30 extra feet. It's better to have more than less.