Each 10-metre strand of Blue LED Christmas Lights add a magical aura to the spaces, places, and surfaces of the home. These not only reflect the whimsy and wonder of the season, but they also reflect a fresh, new start, which makes them ideal for the holiday season. These wonderfully efficient LED lights are a cool, serene blue which is an excellent hue to accent your tree, wreaths, and other spaces with. Imagine the look of your home when your windows and doors are accented with these quality lights. Each strand contains 20mts of clear wire to match any spot that you use them in. There is 8mts of leader and a controller with eight different functions, including memory. The indoor transformer is convenient, but these lights may be used both indoors and out.