Features: The 36 Watt Ultraviolet Gel Curing Light has two settings: 90 second and 120 second. Four 9-watt light bulbs are included (unless indicated) It is safe and effective for use with top coats and gels. It is a one-hand light. (8 pieces per case) UV36-110 ............ 110 volt UV36-220 ............ 220 volt, CE approved UV36-235 ............ 235 volt