This 9 LED UV flashlight perfect for your hobby. The ultraviolet light of the lamp ensures that the UV resin hardens within a few minutes. How long it actually takes to cure, however, also depends on how strong the batteries are, how thick your piece of jewelry is, how much pigment you have added to the resin and what the shape is not included. Attention: even if the blue light looks very tempting - do not look directly into it. It can damage your eyes.