A load control device is adapted to be installed in an electrical wallbox having a barrier. The load control device comprises a split enclosure having first and second enclosure portions spaced apart so as to define a gap, such that the gap is adapted to receive the barrier of the electrical wallbox...http://www.google.fr/patents/US7499261?utm_source=gb-gplus-shareBrevet US7499261 - Load control device having a split enclosure