Review on Enhancing Outdoor Spaces: SURNIE 50ft UV Black Waterproof LED Rope Lights - Flexible, Connectable, and Cuttable for Bedroom, Patio, Party, Christmas, Camping Decoration! by Bob Walters

This gets one star because it is not the product advertised or promised. These are in no way UV emitting LEDs. You won't get such bright colors with UV reactive materials because they aren't UV LEDs. They are just very bright and light blue LEDs. The quality is excellent and the color is excellent and I still find a use for them but this is not what I was originally looking for. You can't sell me a Honda after promising me it's a Ferrari and expecting me not to complain. Change the product name and description. These are literally bright blue LEDs. If you are looking for blue LEDs that don't look like regular dark blue LEDs then I highly recommend them. But if you need UV LEDs, keep looking.