The 23rd edition of LightFair International set new all-time attendance and trade show records for its five-day run in Las Vegas May 9-11, according to Jeffrey Portman, Sr., president and chief operating officer of LFI managing partner AMC Inc. Attendance broke all previous records with 24,121 professional attendees registered from 73 countries. The LFI 2012 trade show floor covered a record 206,800 net square feet and spotlighted 505 exhibitors, including 93 first-time exhibiting companies and 87 international manufacturers. The conference also offered 72 unique courses and 220-plus hours of educational programming covering topics in retrofitting, daylighting, LEDs, OLEDs, lighting design, controls and energy efficiency. LightFair 2013 will be held in Philadelphia April 23-April 25, 2013.