An Innovative Concept in LED Lighting Brings a Historic Favorite to Life -Macy's Union Square San Francisco

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Macy's Flagship store in Union Square San Francisco brings in a fresh new look for this holiday season. To decorate the concave window façade Macy's contracted Numinus, LLC to design and fabricate 30 aluminum frames lined with RGB LED strips that illuminate fabric panels. Each one-foot strip is a unique pixel forming a matrix, which allows Macy's to run animated graphic files.

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Macy's iconic storefront facing Union Square in San Francisco comes to life with a dynamic work-of-light enveloping the concave window façade of Macy's western flagship store. Thirty windows each measuring 7 feet by 12 feet are lined with RGB LED strips reflecting their light on stretched fabric to create a stained-glass effect capable of running animated files.

The Color-Wall was designed and fabricated by Numinus, LLC in Carlsbad, CA. Given only six weeks from concept to completion, Numinus pulled it off with a dedicated team of meticulous, like-minded professionals -- and perhaps a bit of holiday magic.

Measuring 42 feet by 65 feet, this 30-window display is the back-drop for Macy's 40-foot Christmas tree. These windows came to life at The Tree Lighting Ceremony on November 23rd, 2006, enjoyed by a crowd of nearly 5,000 spectators. At 5:55 p.m., the Color-Wall began to run the evening show, which now runs from 5:00 p.m. to 2:00 a.m. nightly through Jan 2nd.

The innovative concept is a plug-and-play system composed of 30 prefabricated window inserts. Each window insert has an aluminum frame lined with 34 independently addressed one-foot LED circuit boards. These RGB LED boards are designed and built by LED Effects in Rancho Cordova, CA. Each foot consists of 15 RGB chips that produce an even consistent light-output of pure color. By designing each one-foot strip to be a unique pixel forming a matrix, allows Macy's to run animated graphic files created by Lightswitch, LLC located in Sausalito, CA, and New York, NY.

Hailed as a complete success, this fresh look breathes an essence of life into the walls of this historic landmark. Email for more information, or visit

Melanie M. Baldwin

Freelance Writer


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