3M Unitek, St. Paul, Minn, introduces the Ortholuxâ„¢ luminous curing light. Powered by LED technology, the Ortholux luminous curing light has a constant light output of 1600 mW/cm2. The light has a one-piece, pen-shaped, stainless steel handpiece; a rechargeable lithium ion battery; and a built-in light meter. The Ortholux luminous curing light cures ceramic brackets in 3 seconds and has a 1-second tack cure feature, according to the company.