LED light-curing unit with periodic level shifting (PLS) technology and thermal control. Power level shifts from 1100mW/cm² to a peak of 1300mW/cm² to deliver a true 5 second cure for shades A3 and lighter without generating excess heat. Enhanced lightweight and ergonomic body design; made from Valox resin, a high performance plastic. 8mm extended light guide; +28% longer giving improved access for posterior procedures. Lithium-ion battery can give 300 x 10 second cures with a single charge. 3 year warranty. Demi Plus Kit Includes: Handpiece, 8mm Light Guide, Lithium-ion Battery Pack, Battery Charger, Power Supply and Protective Light Shield.