supply of main led signal lamps (yellow aspect) for main colour light signal as per rdso/spn/199/2010 rev 1.1 or latestmain led signal lamps (yellow aspect) for main colour light signal as per rdso/spn/199/2010 rev 1.1 or latest,main led signal lamps (yellow aspect) for main colour light signal as per rdso/spn/199/2010 rev 1.1 or latest ,110v ac retrofittable in existing cls housing and compatible with ac led ecr with inbuilt current regulator . [ warranty period: 30 months after the date of delivery] , signal aspect integrated yellow led signal unit 110v ac the complete unit conforming to rdso specification no. rdso/spn/199/2010 rev . 1 with latest amendment or the latest specification of integrated led signal aspects and technical specification. yellow aspect main signal led integrated. [ warranty period: 30 months after the date of delivery] => limited