supply of 18w led surface mounted luminaries, type of mounting - surface, shape of fixture- round wi th sms led chip, aluminium die-cast housing and heat sink for better thermal protection, rated voltage-22 0-240 volt 50 hz single phase, >=120 degree beam angle, led driver efficiency >=85%, cri ( colour rend ering index) >=80, power factor >=0.90, colour temperature >= 6500k, total harmonic distortion <=15% , led luminaire system efficacy>= 100, minimum led chip efficacy >=120, operating
ture- 10 de gree celsius to 50 degree celcius, led life- minimum 50000 hrs, safety compliance as per bis, surge prote ction up to 2.5 kv, unified glare rating(ugr) <19, minimum warranty - 30 months as per irs conditions, wit h ingress protection - ip 20, confirming to is:10322 (part-1):1982 or latest, make-orient, philips, havells or s imilar [ warranty period: 30 months after the date of delivery ] ] sr. section elect.
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