It comes with the bulbs required that you place inside. It took me a few tries, but I'm clumsy like that. Eventually, though, I was able to see how nicely this lamp would work.
The varied settings allow for you to get the timing perfect. It will dry your nails with a gel polish or a traditional polish like you went to the salon which will save you so much money!
I love this item because of the results and the overall savings of this versus a professional gel manicure cost.