Panasonic WR34619 Full 2-wire remote control 6A relay unit with T/U For single-pole, 4-circuit 2 pieces Please check the product specifications on the Panasonic official website. Please determine the manufacturing date from the photos. I don't know the purchase date, as it was stored in a warehouse. Please make your judgment based on the images. The contents have not been opened. Please purchase only if you understand these points.