Märklin HO 7073 Lamp Sockets with Bulbs and Lead Wires - Set of 2, with Original Box Vintage Item Both sets have been tested and the bulbs light up. One set was slightly dimmer. (See photos 3 and 4) Offered for sale to organize my collection. These items have been stored for a long period after use, and therefore have some rust and dirt. There may also be other signs of aging. Please understand that these are old items before considering a purchase. Please refrain from purchasing if you are sensitive to these issues or are looking for new-quality items. Recycled materials will be used for shipping. I appreciate your understanding.