LED rope lights are a very flexible form of lighting, not only in their physical structure but also in their wide variety of lighting applications. All that limits the use of these unique rope lights is the imagination. Some of the more common uses for LED rope lights include:

Architectural accent lighting
Cove lighting (such as in a living room or home theater)
Deck and railing lighting
Building exterior perimeter lighting
Holiday lighting and descoration (LED lights make beautiful Christmas rope lights)
Undercounter accent lighting (great for bars and restaurants)
Trade show lighting
And much more...