supply of ceiling suspended led shadowless lamp for operation theatre, totally enclosed metalised lampheadof 500mm dia, central ceiling anchoring system perfectlyspringbalanced with 360 degree axial rotation, with adjustable height of thelamp head. the lamp shall work on 230 v ac, 50hz single phase supply. if the lamp is operating on lesser voltage, necessary converter / driver for led shall be part of the lamp fitting.the lamp fitting shall besupplied with suitable locking arrangement as per drawing no.armvac 7-6-006 alt #a / 2#. the dimensions indicated for vertical and horizontal moving arms shall be restricted as per drawing. the led shadowless lamp fitting shall be similar to model no.vision-18 of m / s.cognate india ltd. note: ( i ) maintenance and operation manual shall be suppliedalong with the equipment in duplicate. ( ii ) operation of the equipment shall be demonstrated to the custodian of the coach ( viz., ) in any one of divisions / zonal railways of indian railways on arrival of the coach at the base depot and on getting theadvice therefor from the custodian of the coach / icf. [ warranty period: 30 months after the date of delivery ] => limited