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 latest for wap-7 locomotives.,led based head light as per rdso spec no. rdso/2017/ el/spec/0134 (rev -2) or latest for wap-7 locomotives. not e: 1) bird guard to be provided on headlight glass to prevent breakage of glass due to bird hit. die cast aluminium body to be provided for headlight fo r long life and prevention of corrosion. 2) supply by approved sources only as per rdso item id: 3100109 in ireps vendor directory. 3) fi rm should submit authorized dealership certificate along with tender [ warranty period: 30 months after the date of delivery ]