supply of led surface ceiling light- 18 wled surface ceiling light- 18 w, led surface ceiling light- 18 w, color temp.-6500 k, type of fixture-circular, material-al, mounting type-surface, diffuser material- poly carbonate, ip-20, all fasteners must be of nickel / chrome plated, system lumen output->1800 lumens, with 05 year warranty, rated voltage: 230v, surge voltage withstand:2.5 kv, lamp efficacy> / =100 ( lm / w ) led chip, and cri> / =80, beam angle-more than 120, working life for led-50000 hour, make- havells, crompton, surya, philips, bajaj, c&s, halonix, orient electric, panasonic note: dia-175mm and product photograph attached [ warranty period: 60 months after the date of delivery ] => limited