bids are invited for inverter with battery - type of battery-tubular batteryinverter- sine wave, single phase , tablet - display resolution ( pixels ) -1024 x 600brightness ( minimum ) ( nits ) -300operating system details android marshmallow-6.0 or higherconnectivity type-wifi + cellularcellular data support-4g / ltedisplay size ( minimum ) ( inch ) - 7 or higherinternal storage capacity ( gb ) -16ram-2gb , refrigerator - storage volume ( net capacity ) ( litres ) -165 or abovetype of door-single , cooler - nominal air delivery / capacity ( cubic meter per hour ) -4000type of mounting stand mounted-without castor wheelsfilter pads- wood wool padsminimum number of steps for fan speed control- 3 , bed metal - size of rectangular hollow section ±1 ( mm ) 50 mm x 25 mmsize of square hollow section ±1 ( mm ) 25 mm x 25 mmsize of circular hollow sections ±1 ( mm ) 25 mmover all length of bed in mm ( ±10 mm ) 1828height of bed in mm ( ±10 mm ) 450 millimetermin powder / paint coating thickness ( micron ) 50 micronnumber of support members 4 , bed wooden - overall length of legrest ±10 ( mm ) -1833overall height of legrest ±5 ( mm ) -450mattress fixing width ±10 ( mm ) -915type of bed- single bedmaterial of bed frame-other woodfinish-polished total quantity : 1