Input voltage range between 140 volt to 270 volt Air condition at 50 hertz plus minus 2 percent with auto cut off below 120 volt and Power Factor will be greater than or equal to 0.95 and working life for LED is minimum 50000 burning hours as per lumen 80 and lumen 21 reports and LED Makes will be Nichia or citizen or Lumileds or Cree or Bridgelux peanut shaped lens should be provided for each LED. Colour Temperature is 6000 kelvin plus or minus 10 percent and Working Temperature is between 5 degree centrigrade to 50 degree centrigrade and Colour Rendering Index is greater than 70 minute and total harmonic distortion smaller than 10 percent and LED efficacy is less than 100 lumen per watt and Driver efficiency is greater than 85 and beam angle is greater than 120 and protection of the entire housing is IP66 and Photo biological safety of the LES Indian standard is 16108 to 2012 and type of LED Luminaire as per Indian standard 16107 of Part 2 under sec 1 by 2012 type B and type of LED Modules as per the Indian standard 16103 of part 2012 type 3 and heat Sink should be Die cast aluminium along with sufficient heat sink fins and junction or soldering point temperarture shall not exceed 85 degree centrigrade as per Lumen 80 reports and short circuit protection with overload protection and protection of Surge and internal transients is greated than 4 kilovolt and test report from Central Government Lab like NABL or ILAC Indian Standard 10322 of part5 of sec 5 by 2012 and Indian Standard 16107 of part2 by sec1 of 2012 | Prashant Kumar Ravi 492001,AIIMS Raipur Tatibandh |