Cordless and requires no batteries. Powered by the revolutionary U-40™ Ultracapacitor—exclusive technology that re-energizes to full power in under 40 sec. Delivers 25 ten-sec. cures. Proprietary C.U.R.E. Technology™ rapidly delivers uniform depth of cure with industry-leading low temperatures, and the Easy Suite feature set combines simple and intuitive operation with worry-free cleaning.