supply of led signal lighting unit retrofittable in existing cls units as per rdso specification rdso / spn / 153 / 2011. rev.4.1with latest amendment for shunt signal as per specn. specification no. rdso / spn / 153 / 2011, rev.4.1 draft or latest. [ warranty period: 30 months after the date of delivery ] , led shunt signal lighting 110 v ac retrofitable in existing cls housing and complete with ac led conventional ecr as per rdso spn no rdso / spn / 153 / 2011 ( rev 4.1 ) [ warranty period: 30 months after the date of delivery ] , led shunt signal lighting 110 v ac retrofitable in existing cls housing and complete with ac led conventional ecr as per rdso spn no rdso / spn / 153 / 2011 ( rev 4.1 ) [ warranty period: 30 months after the date of delivery ] , led shunt lighting unit retrofittable in existing cls units as per rdso specification no. rdso / spn / 153 / 2011. rev.4.1 with latest amendment for shunt signal. [ warranty period: 30 months after the date of delivery ] , supply of led aspect for shunt signal, shunt led signal lighting 110v ac, retrofitable in existing cls housing and compatible with ac led ecr as per rdso specification no. rdso / spn / 153 / 2011 ( revision: 4.1 ) or latest. [ warranty period: 30 months after the date of delivery ] , led shunt signal lighting 110 v ac retrofittable in existing cls housing and compatible with ac led ecr as per rdso spn .rdso / spn / 153 / 2011 ( rev.4.1 ) draft. [ warranty period: 30 months after the date of delivery ] , supply of led shunt signal aspect with inbuilt current regulator as per rdso specification no. rdso / spn / 153 / 2011 with latest amendment / specification. [ warranty period: 30 months after the date of delivery ] , shunt led signal lightning unit, 110v ac retrofitable inexisting cls holding and compatible with ac led ecr as per rdso spec no . rdso / spn / 199 / 2010 rev 1.0 or latest [ warranty period: 30 months after the date of delivery ] , shunt led signal lightning unit 110vac, retrofitable in existing cls holding compatible with ac led ecr as per rdso spec no. rdso / spn / 199 / 2010 rev 1.0 or latest [ warranty period: 30 months after the date of delivery ] , shunt led%u2019 signal lighting unit 110v ac rectofitable existing cls housing compatible with ac led ecr, rdso specification no. rdso / spn / 153 / 2011rev.4.1 ( draft ) or latest. [ warranty period: 30 months after the date of delivery ]