Pick your location. The very first step of installing LED lighting is to decide where you want to put them. Many people prefer to place such lighting under kitchen cabinets, but you can think of more unusual places such as behind paintings for example.
Mark your placement. Now you have to mark the whole placement for your LED lighting so that you know exactly where the wiring will have to be.
Find somewhere to put the electrical source for your LED lighting. Ideally, this will be hidden somewhere like in a kitchen cabinet.