supply of battery operated led based flashing tail lamp for railway vehicles, confirming to is rdso lko,s no.rdso/spn/200/2010 revision : 2.0. marking required :- 1)battery operated led based flashing tail lamp for railway vehicles, confirming to is rdso lko,s no.rdso/spn/200/2010 revision : 2.0. marking required :- 1),battery operated led based flashing tail lamp for railway vehicles, confirming to is rd so lko,s no.rdso/spn/200/2010 revision : 2.0. marking required :- 1)indian railway nagpur division property is to be written on tail lamps in bold letter in white colour, 2)the remark if found workin g or damage, please handover to nearest railway station of ngp division. also written on tail lamps. firm to take one number sample approval from consignee before initiating bulk supply. [ warranty p eriod: 30 months after the date of delivery ] ]