supply of main led signal lamps (red, green & yellow)main led signal lamps (red, green & yellow),supply of main led signal lamps (yellow aspect) for main colour light signal as per rdso sp ec. rdso/spn/199/2010 rev 1.1 or latest 110v ac retrofitable in existing cls housing and compatible with ac led ecr with in built current regulator [ warranty period: 60 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , main led signal lamps (green aspect) for main colour light signal as per rdso spec. rdso/ spn/199/2010 rev 1.1 or latest 110v ac retrofitable in existing cls housing and compatible with ac led e cr with inbuilt current regulator. [ warranty period: 60 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , main led signal lamps (red aspect) for main colour light signal, as per rdsospec. no. rdso /spn/199/2010 rev 1.1, 110v ac retrofittable in existing cls housing and compatiblewith ac led ecr with inbuilt current regulator. [ warranty period: 60 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]