It is a good product, but the semi-permanent on the hands needs to be applied 3-4 times at high for it to polymerize correctly; it does take a little time, to be honest, but overall it gets the job done in the end.

For professional use, it is bad, the bulbs start off low and after 30 minutes they also get stronger. Also, some semi-permanent ones inflate my material, so it doesn't polymerize correctly

The best thing I have bought for Semi-Permanent !!! The top part comes off easily to paint your toenails too !! 2 in 1 !!! It's worth its money, very good quality, strong lamp - does an excellent job!