tender for supply and installation of led billboard at premises of office of the district magistrate, cooch behar. , led billboard , outdoor billboard with active led.[ specification: pixel pitch :4mm module speecs : smd 3 in 1(320x160mm) cabinet structure: ai die castservice configaration: rear. ingress protection: front/rear ip65, refress frequency:3840hz.luminance brightness:5500-6000nits. screen size:2880 mm x 1920 mm. display metrics: diagonal: 136.3 (ratio:3:2) area:59.52 sq.ft, total resolution:720 x480(345,600px)] , multimedia player/controller.[specification: processing: support computer web and mobile phone apps control, support cloud platform management, storage/memoty: built-in 8gb(4g available),usb plug and playdecoding /engine: support multiple windows and multiple materials to play on sceenat the same time, wifi:wifi connection(ap+sta dual wifi mode), inpout ports: 1 xhdmi in, 2x usb 2.0(flash drive plug & play)[support synchronous signal hdmi input], optput ports: 2 xled out (lan), 1x3.5mmtrs plug audio out, ports & connentivity: router connection | direct network connection | wifi connection(ap+sta dual wifi mode) | 4g and other communicationmethods| audio: 3.5 mm audio and video synchronous output| hardware rated capacity: max load threshold 1,300,000 pixels. | physical specifications: 164x104x33mm|net weight:200 g gross weight:420g , billboard iron outdoor structure( height from ground-10ft.) , ncessary work installation.