The Nano MRI Lamp consists of two magnetic materials: A quencher (magnetic nanoparticle) and an enhancer (MRI contrast agent). The MRI signal depends on the distance between the two materials. The enhancer produces a bright MRI signal only when it is at a critical distance of at least 7 nm away from the quencher. The signal is due to the rapid fluctuations of the electron spins of the enhancer. A fast flipping of the electron spins influences the water molecule, whose energy emission is detected as MRI signals. This technology can overcome the limitations of existing MRI contrast agents.