Features & details High Power and Smart:40w uv led nail lamp with 21pcs led lights,110-240 voltage.3timer(30,60s, 99s) for your choose,LCD screen and smart sensor- put your hand in curing lamp and the LED lights will automatically light. User-friendly design: Easy to clean, Lightweight, Curved housing design protect your eyes, Soft light prevents browning of your skin. Applications: Dry most nail UV gel, UV top coat, UV builder gel, And led nail geL. But can't dry the gel that no contain UV, like regular polish.