Dipl. Ing. (FH) Klaus Bellinger, founder of LEB Bellinger, has been active in his profession since 1979. He has gained extensive experience and has continually sought to improve his professional skills by iniating and managing a huge variety of projects in this field, such as the Art and Exhibition Hall of the city of Bonn.

After completing his training as an energy electronics technician, he studied electrical and mechanical engineering at the University of Applied Sciences Jülich. He wrote his diploma thesis on "Daylight and Artificial Light", which continues to fascinate and inspire him.

He also lectured on energy efficient lighting systems for the North Rhine Westfalia Energy Agency at the college of professional training in Dortmund and Wuppertal.