Tenders for Supply of Route Led Signal Lighting Unit, 110Vac, Retrofittable In Existing Cls Housing And Compatible With A C Led Ecr As Per Rdso Specification No. Rdso/Spn/153/2011, Rev.4.1 Draft Or Latest. Item Is Restricted For Rdso Approved Sources Only. Sub Item Id-3100194001. Warranty Period: 30 Months After The Date Of Deliver Y