Automatic sensor will automatically start when hands get into the machine. *LCD display screen start to record timing that you cured. *Sunshine nails comfortable eye contact.relieve burning sensation. *Low heat mode relieves you from pain when curing gels *Double light source(365+405nm)LED lights to cure UV gels/builder. *36Pcs strategically placed LED lights. *10s,30s, 60s ,99s timer , 10s model, shorten curing time by 50% . 99 s low heat mode , protect skin and eye , no blacken. *Perfectly designed for all nails experts to fast cure UV gels, builder, LED gels, all nails polishs gels. Fast drying gels both on the finger nails and the toe nails. *Removable bas,easy to use and clean. *Suitable for professional use or home use...