I was expecting more details If it is acceptable, it is also true that it can be enriched with other details and illuminate the interior with lamps

This Northern Light & Power interior kit consists of only 7 parts all of which should have been included in the NLP building kit. Obviously Walthers decided to make additional money by offering it as a separate kit. Save your money especially if your building NLP without a removable roof. You can provide better interior detail using scratch parts if you want a removable roof. Not worth the price.