Taking place in Philadelphia this year, Lightfair Intl. is one reportedly of the largest trade shows and conferences catering to the architectural and commercial lighting industry. The event is focused on courses, exhibitions, seminars and workshops for architecture, engineering, design, energy and lighting industry professionals. Attendees can choose to attend the pre-conference May 7-8 with courses and workshops, or the main trade show and conference May 9-11, featuring more than 550-plus exhibitors and a multitude conference courses. For more information, please visit lightfair.com.