What is the difference between UV and LED nail lamps?

LED lamps cure gel polish in 30 60 seconds versus 2 3 minutes for UV lamps. LED lamps also last significantly longer around 50,000 hours compared to UV bulbs that need replacing every few months. However, some specialty gel formulas (particularly hard gels and certain builder gels) require UV wavelengths to cure properly. Most modern gel polishes are formulated for LED, so an LED or dual cure lamp is the best choice for home use.