| 1991 | LIT is founded by a team of scientists from Moscow Physical and Technical University |
| 1995 | Development, production and introduction of a new generation LIT amalgam UV lamps |
| 1996 – 1998 | Commissioning of the largest European UV systems for drinking water disinfection (400.000 m³/day) and for sewage water treatment (300.000 m³/day) in Russia |
| 2000 | Key LIT specialists are awarded with a Government Prize of the Russian Federation for their science and engineering researches in the field of UV technologies |
| 2003 | Introduction of new UV applications for air and surface disinfection in public buildings (schools, hospitals) and the Moscow subway |
| 2004 – 2008 | Start-up of the world's largest UV system for potable water disinfection in Russia. (9 UV systems with a capacity from 0,3 up to 1,5 million m³/day) |
| 2005 | Start-up of South Korean’s largest UV system for disinfection of wastewater (330.000 m³/ day) |
| 2007 | Start-up of the world's largest UV system for waste water disinfection in Russia. (1,3 million m³/day) |
| 2008 | Start-up of Europe’s largest UV system for potable water disinfection in Hungary. (600.000 m³/day) |
| 2010 | Start serial production of UV systems for air disinfection for the Russian National Railway Company |
| 2004 - 2012 | International expansion; Setting up subsidiaries and representative offices in The Netherlands, Spain, Hungary, Romania, Bulgaria, Serbia and China.
The opening of a new “state-of-the-art” production facility in Germany |
