The Light operates from 440 nm - 490 nm (peaking at 460 nm) to meet all standard light curing needs. Its light intensity per mode is: High (up to 1500 mW/cm2), Low (up to 650 mW/cm2), Soft Start (up to 1500 mW/cm2) and Pulse (up to 1500 mW/cm2). It is processor controlled for constant light power regardless of the charge level. The long-lasting lithium-ion battery has no memory effect, can be fully charged in 180 minutes, and will last for 500 10-second cycles on high mode, or 1,000 10-second cycles on low mode.