As an LED affecionado, I can tell you there aren't any.
They are finding their way into automotive uses, but in my experience are expensive and unreliable. They often don't work on 12V, but to send them back is very expensive.
However, if the technology and manufacturing techniques continue for the next 10 years the way they have in the last 10, they are the answer. But right now they are only good for things like backpacking, bicycles and RVs, where energy is precious.