The L3 PRO is a cordless, pen-shaped LED curing light. The L3 PRO uses a glass fiber optic light guide and a red eye shield for minimal eye protection at the end of the tip. Three modes of operation are available: Fast, Ramp, and Pulse. Optical waveLength 460~470nm. Cure time:3mm/10 seconds. The L3 PRO can be used cordless or plugged in if the battery isn’t charged. LED curing light and charger base included.