supply of illuminated push button switch , illuminated push button switch of (red color-40 nos., green color-40 nos., white color- 40 no s., amber color. 40 nos.) , dia 22.5mm. led type 24v dc with 2nc & 2no auxillary contactor block, suitable for switch board cabinet of high capacity lhb power cars & lslrd coach, as per edts 103, rev-d, am-4 an d rdso specification no.rdso/pe/spec/tl/0195-2019(rev 0).rdso approved make only. note:1. this item should be procured from oem/authorized dealer only to quote with documentary evidence.2. before bulk su pply sample should be sent. [ warranty period: 30 months after the date of delivery ] ]