The paper describes means for controlling vehicle headlamp intensity to provide a 'town beam' for use in lighted sheets. Two systems have been developed to meet the recommendations of the International Commission on Illumination (CIE) for "a town beam which is intermediate in intensity between that of the currently used low beam and side lights. Such a light should have a luminous intensity between 50 and 100 cd and should have an area similar to that of current headlights." One system is a manual one consisting of a relay andd resistor, which was first proposed in the early 1960's. The other is a recent development of an automatic system, which controls headlamp intensity automatically to suit the ambient streetlighting. A full scale trial of 1 000 units is proposed for the winter of 1976-77.