Anywhere where space is of a premium, whether it's a physical living space or constraints in design, you might find an LED capsule bulb. LED capsules are used in the likes of : caravan lighting, boat lighting, pelmet lighting, or desk lights. All the usual advantages of LED apply, if you're thinking of perhaps replacing an existing halogen equivalent.
An LED will give you a massively increased lifespan over halogen, it'll be cooler-running with no discernible heat, it'll emit little or no UV, and it'll be vastly more economical in the consumption of watts.
When you consider the confined spaces we've hinted at, some of the classic LED attributes are distinctly advantageous. An LED can be in close proximity to you without burning your nose. It can be in close-proximity to furnishings without causing any UV damage. It is resistant to vibration or shock. LED is a futuristic light form in its potential that can help you in almost any scenario.