supply of led signal lamps for main colour light signal, 110v ac retrofittable in existing cls housing and compatible with ac led ecr as per rdso specn.no.rdso / spn / 199 / 2010 ( rev.1 ) or latest. yellow aspect [ warranty period: 30 months after the date of delivery ] , main led signal lighting unit 110vac consisting of led signal green aspect as per rdso specification no. rdso / spn / 199 / 2010 rev.1 with latest amndt. for integrated led signal lighting unit compitable for housing in existing cls main signal green aspect. [ warranty period: 30 months after the date of delivery ] , supply of led signal lamps for main colour light signal, 110v ac retrofittable in existing cls housing and compatible with ac led ecr as per rdso specn. no. rdso / spn / 199 / 2010 ( rev.1 ) or latest. green aspect [ warranty period: 30 months after the date of delivery ] , supply of led signal lamps for main colour light signal, 110v ac retrofittable in existing cls housing and compatible with ac led ecr as per rdso specn. no. rdso / spn / 199 / 2010 ( rev.1 ) or latest. yellow aspect [ warranty period: 30 months after the date of delivery ] , supply of led signal lamps for main colour light signal, 110v ac retrofittable in existing cls housing and compatible with ac led ecr as per rdso specn. no. rdso / spn / 199 / 2010 ( rev.1 ) or latest. red aspect [ warranty period: 30 months after the date of delivery ]