TRANSFORMING THE FUTURE OF LIGHT AND TECHNOLOGY PHILADELPHIA, PA USA Pennsylvania Convention Center PRE-CONFERENCE May 7 - 8, 2017 TRADE SHOW & CONFERENCE May 9 - 11, 2017 LIGHTFAIR.COM CIRCLE 215http://www.LIGHTFAIR.COM http://www.LIGHTFAIR.COM https://www.cdsreportnow.com/bgs/search?CBP0215201704