supply of 1000 nos 120w led street lights set for installation at different wards under siliguri municipal corporation 2nd call supply of 1000 nos 120w led street lights set for installation at different wards under siliguri municipal corporation , supply of integral driver 120 watt led street light with nominal system lumen output of 18000 lumens and minimum system lumen efficacy of 150 lumen /watt. the luminaries shall have rated system lifetime of 50,000 burning hours at l70b50. the luminaries should have cct 5700k and cri >70, sdcm<5. the luminaries shall meet ip66 ik10 rating with thd <10% at full load. wide operating voltage(clo) 120-277v & pf>0.95 at full load, electrical insulation class 1, interface to main should be via 3c 1.0 sq. mm, 0.5m flying cable, t ambient range -10 to +55 degree c. inbuilt surge protection 4kv, external 10kv spd. the luminaries housing should be made by pressure dia cast aluminum lens cover should be made by pc. the luminaries should have hv cut off @325v, 440v protection for 8 hours. lm79 and lm80 reports need to be submitted from nabl/ul accredited lab to verify above parameters. both fixture and driver have to be bis certified. led should be warranted for 5 years. , make philips , make crompton , make bajaj