Yellow Led Signal Lighting Unit With Built In Current Regulator, Retrofittable In Existing Cls U Nit As Rdso Specification No. Rdso/Spn/199/2010/Rev.1.0 With Latest Amendment For Main Led Signal Unit [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]