Supply of Twin Beam sealed head light assembly as per RDSO Specification No. ELRS/ Spec /PR/0024 Rev.1 of Sept-2004 along with DC - DC Converter as per RDSO Specification No. ELRS/Spec/DC- DC /Converter /0021, Rev.1 of Sept-2004 [Each set consist of 02 Nos. Head light assembly and 01 No. DC- DC Converter].