For 9 watts
Drying technique
Gel polish is dried according to the principle of 4-4-2. That is, you first need to dry the nails of four fingers of the right hand, then with the 4th left, and in conclusion-2 thumbs. If you use an ultraviolet lamp for 9 watts, dry the varnish with it for at least 3 minutes. In this case, you can and should use the timer to facilitate the task.