supply of led tube light rating - 18 watts length of led , led tube light rating - 18 watts length of led tube light (nominal) - 4 feet lamp effic cy (lumen/watt), minimum- 100 type of tube light - t-8 cap designation - g13 type of driver - inbuilt (for t8) lamp shell material - polycarbonate led chip efficacy (lumen/watt), minimum- 130 colour te mperature (in k) - 6500 (cool white) ingress protection - ip 20 light source - smd led chip colour ren dering index (cri)-minimum- 80 total harmonics distortion maximum - 20% lumen maintenance - > / = 70% after 6000 burning as per lm 80 availability of temperature cycling test and supply voltage swi tching test reports (1) product shall be subjected to minus 10 degree c for 1 hour then switch to 50 d egree c for 1 hour in total cycles (2) 30 sec on and 30sec off at the end of test - yes beam angle (in d egree) - >/=120 operating voltage range - 100 to 300 volts driver efficiency - >/=85% surge voltage withstand - 2.5 kv rated voltage - 220 v to 240v input frequency - 50hz power factor - >/=0.9 life of led minimum - 50000 hours safety of lamp control gear - as per is: 15885 (part 2/sec 13:2012/iec: 61 347-2-13/en 61347-2-13 dc or ac supplied electronic control - as per is: 16104:2012 latest /iec gear for led modules %u2013 performance 62384:2020 requirements availability of bis crs compliance - yes as per is 15885 (part 2/sec 13) photo biological safety of leds - yes as per is: 16108/2012/iec: 62 471:2006 iso certification - iso: 9001:2015 agreed to furnish lm 79 report and lm 80 report to buyer on demand - yes warranty for free replacement - 2 years the item shall be equivalent of havells make acceptable brand: havells, bajaj, luker, crompton, philips, halonix. [ warranty period: 30 months af ter the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]