I like that this IPL has 5 energy settings, from the lightest to strongest, so you can adjust it to what works for your skin. It has a setting for small area's like the face, and a second setting for larger area's like arms or legs. The light helps disturb the melanin of your hair, causing it to grow more slowly and/or eventually stop growing. This IPL is the perfect shape and size to fit comfortably in your hand. And it works, which is the best part of all.