I put myself right in UV varnishes and I did not have all the knowledge to use it well. Namely a UV varnish is used with a UV lamp, not with LED lamp, because there are two types of lamp, UV and Led ... For now I'm so wrong lamp for my opinion is maybe not very relevant. What I can say is that there is a wide choice of color, which are also very beautiful. To my taste it lacks in gray tones. There are many different shades of pink and red. As for nail polish, as they are not supplied with brushes, I made the recycling of old brushes with varnish (washed with solvent and oil). I found the texture of hard varnish put on the brush and then difficult to put on the nail. I expect to receive my new brushes to see if I can better ask the varnish. I am puzzled by this product which is not expensive and has beautiful color but whose pose is difficult ...