A UV lamp emits ultraviolet light, which is commonly used in various applications, including curing nail polish and disinfecting surfaces. These lamps work by producing UV rays that help harden or cure certain materials, making them ideal for salons and medical settings. On the other hand, a LED lamp uses light-emitting diodes to produce light. LED lamps are energy-efficient and have a longer lifespan compared to traditional bulbs. In nail care, they are often used for curing gel nail polish, providing a quick and effective way to achieve a durable finish without the harmful effects of UV radiation.