supply of led based head light as per rdso spec no. rdso / 2017 / el / spec / 0134 ( rev -2 ) or latest for wap-7 locomotives., led based head light as per rdso spec no. rdso / 2017 / el / spec / 0134 ( rev -2 ) or late st for wap-7 locomotives. note: 1 ) bird guard to be provided on headlight glass to prevent breakage of glas s 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 item id: 3100109 in uvam vendor directory. 3 ) firm should s ubmit authorized dealership certificate along with tender. [ warranty period: 30 months after the date of delivery ]