Bluelight is a LED curing CIPP lining system for laterals and small wastewater-pipes. The curing is realized by a set of LED's operating in the wavelength of blue light (450 nm). The liner-carrier is based on flexible felt with a PU coating or GFRP. As a system-supplier Bluelight covers harmonized installation technique and liner-materials out of one hand. The system offers approved and working solutions for the special needs and circumstances found in laterals and small diameter wastewater pipes.