Excellence Opto, Inc. will be exhibiting at Booth #3357 in LightFair International 2013 happening next week on April 23-25, 2013 at the Pennsylvania Convention Center.  Lightfair International is the world's largest annual architectural and commercial lighting trade show and conference with innovative products from high-end design to cutting-edge technology.    Don't have a ticket to LFI 2013? No worries! Excellence Opto, Inc. will be happy to provide you a VIP pass to the LightFair International 2013 for free. For more information, em...