I was not at all satisfied, as before this I had a lamp that cost 9€ and was much better in quality than this one here!! It doesn't diffuse as it should and takes a long time..

I don't yet have a very accurate opinion on whether it cures semi-permanent nail polishes properly, as I have no experience and this is the first time I am using a lamp. I started with a dark color and it didn't cure easily - but maybe it was because I didn't apply a smaller amount of polish. For a light color, to be sure, I kept it in for at least 90 seconds. What I didn't like, of course, is that it is bulky. You don't feel the temperature rising on your hand.