I am the original purchaser, never used or out of the box till I just took photos to verify it is working. Follow instructions on box, it takes several minutes after they are plugged in and upright before they start bubbling. Fragrance and smoke free. This is truly an international set. If you look at the box, the string and bulbs are made in China. The bubble vile is made in Taiwan. Bubble light base is made in USA. Assembled in Mexico.