A housing for a LED light source (8), which housing comprises an outer tube portion having a longitudinal axis and being closed at one end by a translucent outer cover (4), wherein said housing comprises an inner tube portion manufactured from a thermal conducting material and arranged inside said outer tube portion in such a manner that said inner tube portion can rotate around said axis with respect to said outer tube portion, said inner tube portion comprising two parts of which a first part (9) is rotateably arranged to said outer tube, said second part (10) comprising said LED light source (8), said first part (9) extending substantially around said axis, said second part (10) extends around a further longitudinal axis, said first (9) and second part (10) being cooperatively engaged so that said further axis is inclinable with respect to said axis while thermal conduction between first (9) and second part (10) is maintained.