Unless you are a lighting industry professional, you can be excused for not being familiar with the name Radium. As a part of the Osram group of companies but operating as a seperate entity, Radium are a world class manufacturer of high output discharge lamps for sports stadia, street lighting and other forms of area floodlighting. The Radium range of lamps includes fluorescent tubes, tungsten halogen and LED, and our experience with them has been excellent.