Many homes have this kind of lighting in kitchens, bathrooms, hallways and basements - anywhere that needs to be brightly lit.

LED units also function well in strips, so under kitchen units and inside cupboards are ideal - also they give off almost no heat, plus the extremely bright light is needed in a fairly confined area rather than spread widely.

What LED lights are presently less adept at is all round illumination - from say a table lamp with a lamp shade.