Overview: 1. Dual light source: 365nm + 405nm, curing various gels 2. Nail salon professional use 3. Star6/Star7 is available for selection. 4. Intelligent infrared sensor 5. 30s / 60s / 90s optional button 6. Quick drying for 60 seconds Note: 1. Please read the user manual carefully before use. 2. In order to maintain a long service life, please keep the LEDs on for more than 600 seconds.