The National Library of Belarus.

The National Library of Belarus, an architectural diamond, is lit at night in stunning fashion by 4646 color-changing RGB LED fixtures. In 2006, Minsk received a new architectural symbol - a brand new building to house the National Library of Belarus. The twenty-three storey library is designed in the form of a diamond and symbolizes the enormous value of knowledge that mankind has stored in books.

The building is covered by glass panels and during the day all 24 sides sparkle as a real diamond. A color-changing LED fixtures is installed around the building, effectively creating a monitor with 25x25 meter sides and 62 meters in diameter. As a result, spectators are able to observe a fantastic show with incredible dynamic plots from hundreds of meters away. It is an extraordinary creative venue for lighting designers. The entire color-changing system was designed and produced by Walter Industries (Minsk, Belarus), a 100% subsidiary of a Canadian lighting manufacturer GVA Lighting, Inc.The system consists of 4646 custom-made RGB light fixtures (star), 1349 controllers, 54 splitters, one channel splitter RS-485-1/8, one converter USB/RS-485-1 and one personal computer. Protocol RS-485 was chosen for maximal reliability of the system. Every star fixture is equipped with three 1W Luxeon (Red, Green, Blue) mounted on a metal-core PCB. The star fixture is IP54-rated and suitable for ambient temperatures varying from -30°C to +50°C.