supply of led based headlight assembly with ovalled based headlight assembly with oval,led based headlight assembly with oval mounting arrangement as per rdso spec no. rdso/2017/el/spec/0134 (r ev.3) or latest suitable for wap4/wag7 conventional electric locomotives. 1) bird guard to be provided on headlight glass to prev ent breakage of glass due to bird hit. die cast aluminium body to be provided for headlight for long life and prevention of corrosion . 2) supply by approved sources only as per rdso item id: 3100109 in ireps vendor directory. 3) firm should submit authoriz ed dealership certificate along with tender [ warranty period: 30 months after the date of delivery ] ]