Light intensity of 1,200 mW/cm2 cures composite in 10 seconds / 4 mm. Two stage polymerization with initial lower intensity prior to higher intensity polymerization resulting in less shrinkage stress. Curing cycle can be interrupted manually with one-touch trigger button. Specifications? 100~240V 50/60Hz AC. Accessories? Control Unit, LED Probe, LED Probe Cover, Unit Mount Handpiece Holder, AC Adaptor, Orange Eye Protection Shield, Disposable Sleeves