4.5 Kw Under Slung Constant Voltage Regulated Cum Emergency Battery Charger For Lhb Coaches Confirming To Rdso Specification No. Rdso/Pe/Spec/Ac/0183-(Rev.1) 2018 Or Latest. Material T O Be Procured From Rcf/Icf/Rdso Approved Sources Or Only. Note: Firm Should Supply Proof Of Purchas E From Oem Or Authorized Dealers Only. Firm Should Supply Test Certificate & Guaranty Certificate Along With Supply Of Item. [ Warranty Period: 30 Months After The Date Of Delivery ] ]