Somewhere the question was asked about these lites v. D'lites.
I can tell you from experience these are not the quality of D'Lites. I will be trying to return these Prisma's and ordering another pair of D'Lites. The Prismas are way longer and way darker in the shade of the thumb tip. The lite will com on at random times, I think because of the way the lites are placed into the thumb tip. They are harder to conceal in a pocket and harder to hide the length. I do table hopping in restaurants, busking, volunteer work for children's hospitals, and hospice facilities. It was really embarrassing when a kid asked why my thumb was so long. I just told her it was a birth defect and she was satisfied. Overall they pale in comparison to the D'Lites!

Though these employ the same method/delivery of the light, these are superior to the D'Lites that previously bore Rocco's name and image. The gimmick in which the lights are housed, (don't want to give away anything, though the method has been well known and 'exposed' for years), is excellent quality. More realistic looking in color, texture and shape than the ones used for the D'Lites. These are bright, easily worked, fit perfectly out of the box, (for me - but they are customizable), and are of superior quality to the D'Lites in every way. The packaging is beyond perfect. They arrive in a professional, impressive drawer box that is perfect for both shipping and storage of the Prisma Lites. They arrive with the battery protected from accidental activation, protected in foam and sturdy cardboard; and there is a 22 minute online video, (accessible via a code provided with purchase), giving instructions and use ideas by Rocco. Cannot beat these - particularly for the price. If you were frustrated with D'Lotes, give these a try. If you liked the D'Lites, you're going to love these!