A light weight electrochromic dimmable mirror stack is presented that is composed only of solid-state layers with a total thickness of less than 50 micron and a reflector. The system includes a radio frequency identification tag attached to each of the objects to be tracked and each tag has an antenna. In certain embodiments, the epoxy resin varnishes provided herein are used for making laminates such as copper clad laminates. The first SOP field is used to indicate that the payload contains the first portion of a first packet and the first EOP field indicates that the payload contains the last portion of the first packet. , convex, inner surface which is secured at one end to a thrust washer. Before a light emitting region is formed, the precursory buffer layer 2\u2032 is annealed for re-crystallization to thereby convert it into a buffer layer 2.