Really easy to use. [SEP] This plugs in so no batteries! Yay! I got this nail lamp to use for my resin crafts. It works really well. I can either scoot the UV resin item under the lamp or take off the removable top and put it back over the item. The top of the lamp comes off pretty easily, but not on accident. You have to kind of pull with purpose. It also goes back on easily. There are buttons for different times and settings. Pretty much plug and play. Light and easy to transport, also.