bids are invited for lcd projector and screen - lcd projector3300 lumens brightness, xga resolution, 15000:1 contrast ratio, with usb display function 2 in 1: image / mouse interfaces vga in, hdmi in, usb 2.0 type b, connectivity. lamp life- uhe, 210 w, 6, 000 h durability, 12, 000 h durability ( economy mode ) 3years onsite warrantyscreen instalock 6ft x 4ftceiling mount kithdmi cable 10mpower cable 10mwall face plate , digital podium - portable pa system, wireless, amplifier, suitable for meeting room, conference room. built-in 60w amplifier, speaker, 2 gooseneck mic and 2 wireless microphones. built-in three 4 woofer and one 2 tweeter. a flexible gooseneck lamp, two mic, one line and four aux inputs and record input and output, bass, treble and volume controller, external amplifier and speaker connector, two optional vhf or uhf wireless mic ( handheld or lapel ) , max transmission range 100ms, ac 220v, 50hz power operation, wooden top, steel body and bottom, steel grill, recording output: 1v / 0db, tone control: bass 20db / treble 20db, transmission distance: 15-30m, max consumption power100w, output power 60w, frequency response 800hz~16, 000hz, signal to noise ratio above 65db , pedestal fan - pedestal fan 16” ( for conference hall ) high flow - 400 mm 400 mm 3 blade, motor speed: 1300 rpm, power consumption: 55 w or lower, blade sweep size: 400 mm, number of speed settings: 3, 2 years or warranty. , invertor ( 4kva ) - invertor ( 4kva ) multistage charging, dsp based intelligent control, pure sine wave output, fast change over, ideal for mixed load application, input voltage - normal mode 90-270vac, voltage - ups mode 195-260vac, frequency 50hz + / - 5hz, output voltage 215v -5to+1%, frequency 50hz + / - 0.5hz, waveform pure sinewave, 72vdc, charging current 0-10a, over load protection, short circuit protection, battery low led indication, battery voltage, output voltage, mains votage, load, charging current, short circuit, over load auditable indicationbuzzer alarm in batt. low mode, over loaded mode & short circuit mode, capacities available: 80 ah c20 ( c10 preferable ) rate, high-quality lead alloy, durable tubular plates tubular battery warranty - 3 years total quantity : 1