Panasonic WR34619 Full 2-wire remote control T/U with 6A relay unit For single-pole, 4-circuit 1 piece Please check the product specifications on the Panasonic official website. Please determine the manufacturing date from the photos. This item was in storage, and the purchase date is unknown. Please make your judgment based on the images. The contents have not been opened. Please purchase only if you understand these points.